The larger a viball is, the higher its vibration intensity and stimulation, but a maximum size viball is not always the best choice. You can find out which ball sizes are suitable for which problems or applications under (Which ball size for which application). In this chapter, we will focus on determining your individual maximum size.
Time and again we receive inquiries with details such as age, height, weight, stature, etc. as to which size is "the right one" or the maximum that a woman or man can take. But this size cannot be determined on the basis of biometric data. People are different, due to genetic predisposition, life course, births and, last but not least, sexual habits.
So instead of asking this question to the outside world, ask yourself: Why do I know so little about myself and my body? Why am I perhaps even reluctant to explore my genital area in more detail? If that is the case: Start, smile as you do so, be playful, uninhibited, curious, like a child! Getting to know yourself and becoming aware of your uninhibited "self" again by dissolving this taboo is often the first step towards improving the problem.
Erotic toys can serve as a reference point for determining your individual maximum size. But with a dildo, vibrator or phallus, the diameter refers to several centimetres in length - the diameter of a viball love ball, however, only refers to its outermost apex, the diameter of the ball drops sharply directly in front of and behind it. For this reason, the diameter of a Viball can be larger than that of a dildo, prostate vibrator or elongated (phallic) object.
The most accurate way to determine the right size is to use a ball shape. You can find wooden or polystyrene balls in almost any size in craft stores or online, and solid rubber balls from toy or pet stores are also suitable as long as they are not hollow or too soft. Other examples: A table tennis ball is 40 mm, a golf ball 42 - 45 mm. You can playfully try all these models in a condom. Of course you can try other balls, the important thing is that all test objects are as hard as possible. Soft materials form a considerable barrier in front of sphincters due to their compression and are therefore not suitable.
If you want to explore and open yourself (and / or your partner) in a therapeutic-erotic way, Theros FMS dilators are the ideal tools for this. For men, experiencing the feminine principle and activating the second pole, which is important for the flow of energy, is often the only way to unfold the full masculinity and often solves potency problems. For women, the experience of male energy as a penetrator is challenging and exciting - and for both of you and your sex, this role reversal is an enormous sensual enrichment. More on this under "FMS dilators for couples." But if, despite everything, you bought your first viball a little too small, it's not worthless. Women can use it for active pelvic floor exercises or use the size for longer periods at home, where it won't be a problem if it slips out when sneezing, coughing or making vigorous movements. Many customers buy several sizes - for different therapeutic applications or as accessories during sex.
This overview is intended to clarify the various possible uses of the Viball as a pelvic floor training device or love ball. The following information is to be understood as a rough guide; considerable deviations are possible depending on the individual physique. The term "individual maximum size" in the following refers to the largest ball that the respective person can insert vaginally or rectally without manipulation by medication and without pain. The correct individual maximum size is particularly important for long-term vaginal use. The correct maximum size triggers a brief, distinct stretching sensation during insertion. This signals that this size rests securely in the vagina above the vaginal entrance muscle WITHOUT muscle tension, without sliding out. This prevents cramping due to overstraining, which can occur when (often intuitively) holding smaller balls or cones for a long time and can lead to muscle hardening. This risk does not normally exist with anal/rectal use because the anal muscle is stronger and closes more tightly than the vaginal entrance. There is also no risk of overloading due to too much weight, which is why light models are not normally required for anal use. You can find tips on how to determine your individual maximum size under "How do I determine the maximum size I can insert?".
Applications for men, women, various Hemorrhoids Recommended size: 36 - 40 mm The correct size should be very easy to insert and should not require pressing. If even a VB36 is still too large, we strongly recommend using our FMS dilators in our sets up to 36 mm. Then you can start using Viball, which of course simultaneously trains the pelvic floor (also via rectal use) and stimulates the prostate in men.
Accessory during sex or intercourse Recommended size: all sizes (Too) wide vagina or (too) small penis Recommended size: Up to approx. 45 mm for vaginal use during sexual intercourse.
Applications especially for women
Healthy pelvic floor Recommended size: Individual maximum size for long-term use Postnatal recovery Recommended size: 36 - 40 mm for active pelvic floor trainingUp to 45 mm for long-term use Weakened pelvic floor / incontinence36 - 45 mm for active trainingindividual maximum size for long-term use
Very weak pelvic floor / mature women
36 - 40 mm with active training Individual maximum size for active training in horizontal positions. (These special exercises are part of our comprehensive pelvic floor exercises with Viball, which you will receive free of charge by email when you purchase a Viball)Indiv. maximum size in light version for long-term use
Bladder prolapse problems 36 - 40 mm with active training Indiv. maximum size for active training in horizontal positions Individual maximum size in light version for long-term use
Uterine prolapse symptoms 36 - 40 mm with active training Individual maximum size for active training in horizontal positions Individual maximum size in light version for long-term use
Reinnervation of scars / numb areas Individual maximum size (possibly in light version) for long-term use
Applications especially for men
Pelvic floor training / incontinence Individual maximum size for long-term use
Prostate stimulation Individual maximum size for long-term use
Erection enhancement during intercourse Individual maximum size for long-term use
Premature ejaculation From 45 mm (individually perceptible pulses are required to be able to concentrate on this)
For several reasons:
1. for return loops or similar, a coating of softer material such as silicone is necessary, which considerably reduces the intensity of the stimulation. The priority of Viball love balls is to achieve the maximum possible efficiency. Implant steel conducts vibrations into the body in an unbeatable way, remains permanently hygienic, is completely free of toxins, extremely sustainable and environmentally friendly.
2. the very smooth surface of Viball stimulates the muscles to feel the ball, to move it, to play with it, so to speak. This happens involuntarily and without you having to do anything. Viball gradually moves over different parts of the muscles instead of remaining in one place. This is an essential part of its effect. Any kind of external application or change in the shape of the ball prevents this therapeutic and pleasant effect.
3. any mix of materials is anatomically and hygienically questionable, especially when used rectally. The closed stainless steel ball is smoother, considerably more efficient and easier to clean than plastic.
4. viball is completely absorbed by the body, there is no bridge for bacteria inside your vagina, which can cause vaginal fungus, urinary tract infections or similar. This means that Viball is completely invisible to others and you can use it wherever and whenever you want. Balls with chains are more commonly offered in the BDSM / fetish sector: The chains are either attached to protruding eyelets on the surface of the ball, which cause problems when inserting and removing them, or they are attached with a screw that protrudes into the inner area of the ball and makes it impossible for the inner ball to roll unhindered. Because of the thread, the outer balls have to be very thick-walled, which means that the inner ball has less space and the efficiency is reduced even further. In addition, this hole in the outer ball is hygienically questionable because the interior cannot be cleaned.
No, this is anatomically impossible: there is no peristalsis (bowel movement) in the anal area that pulls something inwards, as is often feared, but the direction of peristalsis is naturally only outwards. Even if Viball were inserted so deeply into the bowel with aids that it could not be expelled again on its own - which is completely impossible with "normal" insertion with the fingers - it would reappear by itself after a while, at the latest during the next bowel movement. This is because, unlike elliptical or rod-like shapes such as dildos or other sex toys, a ball cannot move across the body after insertion or lock in front of the sphincter; its dimensions always remain the same. However, if sizes have only been inserted with pre-stretching or with the help of a Theros FMS dilator set, the insertion should also be prepared. Even with deep vaginal insertion or use during sexual intercourse, it is of course impossible for Viball to "disappear". In a very deep position in contact with the uterus, it may take a little longer, in which case you should relax and wait for a while instead of trying to force something. We have never heard of a case in which medical help was needed to remove it.
The safety of Viball as a medical device for vaginal or rectal use is guaranteed in accordance with the safety requirements of the Medical Devices Act. The various applications of Viball and its removal from the vagina or anus are explained in detail in the enclosed instructions for use. The fear that objects will disappear inside the body and can only be removed in the emergency room is completely unfounded when using Viball: A ball cannot become dislocated in the body, even in the rectum this is anatomically impossible.Each Viball comes with an application sleeve that you can use to support the deployment if health problems or abnormalities make this necessary, such as bulging surgical scars, genetically caused severe folds in the vaginal wall, extreme organ prolapse or severe tension / spasms in the vaginal or rectal area. In order to recognize these problems and to ensure safe use in all cases, the first application should be carried out with this sheath. If it turns out that you have such a health problem, you can support the application with the sleeve by pulling. In this case, you should generally use Viball with application sleeves, which we offer at a reasonable price in packs of 20 or 50.
In the following, we will limit ourselves to the topic of "vaginal use".
Vaginal cones or cones do not work through vibration, but only through weight. They are therefore used for a kind of "weight lifting", i.e. active training. As with efficient muscle training in the gym, a "set" (a number of repetitions) always alternates with a short break, but after a few sets there should be a longer relaxation phase. However, these relaxation phases are often not possible due to the shape of cones or Kegels, as they are too small for most women and slide out quickly when the pelvic floor is completely relaxed, i.e. they do not allow any real relaxation. If cones remain in the body for too long, this often leads to an intuitive permanent tension and even cramping of the muscles. This can have a negative effect on biofeedback. No muscle can be optimally trained in permanent tension.
In contrast, the concept of Viball for vaginal use is based on being able to remain above the vaginal entrance (introitus) during the relaxation phases without any arbitrary tension of the pelvic floor or vaginal muscles, which requires your individual maximum size. We cannot determine this size for you based on biometric data, only you can do this yourself (for tips on this, see above: "How do I find the maximum size..."). The right size for long-term use triggers a brief but distinct stretching sensation when the apex of the ball passes the narrowest point. To compensate for this, this size offers sufficient security when coughing, sneezing or other "pressure situations" and generates a very high impulse for the muscle tone. The vaginal introitus can also support the relatively high weight of a viball without overstraining the pelvic floor.
The pulses stimulate different muscle groups and areas in the pelvic floor with every movement, even below your threshold of perception. They mainly stimulate so-called "fast twitch" (fine nerve, fast-acting) muscle fibers - an essential part of your sphincter muscles! - and therefore help quickly against incontinence.
You can actively support the perceptible and erotically stimulating impulses with contractions, whereby the "slow twitch" (slow-reacting but strong) muscle fibers are used.
Fast twitch and slow twitch are only rough classifications of a variety of different types of muscle fibers with different properties and functions.
This means you can adjust the amount of passive (erotic) stimulation and active exercises to suit your current state of mind and increase the workload according to your individual capabilities. Anytime and anywhere.
With its vibration properties, Viball covers not only the above-mentioned weight training but also the training effect of pelvic floor training aids based on the functional principle of love balls. Its impulse behavior has been perfected to the maximum through physically precise coordination of the components.
Viball therefore combines all the mechanical functional principles of training devices for the pelvic floor and sphincter muscles.
First of all: Simple hollow balls WITHOUT an inner ball and solid balls (i.e. without vibration) are now also offered as "love balls". However, these balls have nothing to do with this, because love balls in the original sense (or Ben Wa balls, smart balls, pleasure balls, orgasm balls, vaginal balls and many more) all work more or less according to the same principle: a solid ball rolls in a hollow ball and thus generates vibrations during movement. When inserted vaginally or anally, these balls generate sexual pleasure, some more, some less, depending on the material and optimization of the components. And since pleasure is a wonderful way to train the pelvic floor due to the resulting contractions, the same rotation principle is also used for therapeutic purposes. Therapy and pleasure are therefore not different, but complement each other, so the principle of "ball in ball" is not new. However, there are considerable differences in quality and calculation, as in other areas. Due to the stainless steel/implant steel material and optimally coordinated ratios of the components, Viball love balls in each of the six sizes achieve an effect whose intensity is demonstrably unsurpassed. You can find out more in the Viball product descriptions for women or men or under Viball special features.
Put simply, biofeedback is used to bring physical reactions that lie below the threshold of perception into consciousness so that they can then be consciously weakened or strengthened according to their respective characteristics. This term has recently also been increasingly used for pelvic floor training devices, but is originally used more in TENS therapy (transcutaneous electrical nerve stimulation), where stimulation current triggers (primary) muscle contractions via electrodes.
In the area of pelvic floor training with love balls, the biofeedback effect primarily occurs via the activation of the so-called fast-twitch muscle fibers (fast-responding muscle fibers that tend to perform contractions at a high frequency). When these are activated by vibrations, you can reinforce a barely perceptible impulse by "joining in" with other muscles in the pelvic floor area, e.g. the "slow switch" muscle fibers: These are not as sensitive, but they are strong. You can then use them to perform a muscle contraction, i.e. an active training movement - or several, if you like: Within a longer application, you should definitely relax after the active phase, so Viball should be able to be completely "released" without sliding out of the vagina. This requires a size that causes a brief stretching sensation during insertion. This is why Viball is available in six sizes.
In the relaxation phases, you can let the vibration impulses have a passive and erotically stimulating effect.for men: bio-feedback is also possible with anal use, there are also corresponding "receptors" in the anal region, and the vibration also has a stimulating effect on the prostate.
Each Viball size has the most intensive rotational energy, i.e. the maximum vibration strength that can be achieved in this size - more is not physically possible. In addition, the stainless steel of Viball love balls has significantly better vibration and resonance properties compared to silicone products.
But differences in the intensity of the various sizes are due to physical reasons: smaller balls naturally have a smaller inner ball with less weight, and therefore less rotational energy than larger ones. The efficiency increases from size to size not only linearly (evenly), but exponentially (increasing more and more), because on the one hand the weight of the respective inner sphere increases and at the same time the inner space offers proportionally more room to vibrate.
Two smaller spheres (VB36-2 or VB40-2) usually have considerably more surface area than the next larger sphere, i.e. they distribute the vibration over a larger body surface.
This means that although the pair of VB36-2s acts on a larger surface area than a single 40 mm viball, it does not achieve the same overall impulse strength (vibration intensity) in relation to the surface area.
Take the Viball in your hand and feel the weight and movement of the inner ball. Now swing the ball slowly back and forth from your wrist: this realistically simulates the maximum movement that your lower body can perform in terms of range of motion and speed.
Fast hand movements or hectic shaking from the forearm are unrealistic, because you cannot perform such extreme and/or far-reaching movements with your lower body, so the noise that occurs is not representative.
These slight movements produce a vibrating noise or a slight clicking sound. In your body, the noise is of course greatly dampened and is much quieter than when testing in your hand. If you now change the position of the ball a few times horizontally and vertically, the noise also changes. This is because Viball is made up of two halves. Laser welding creates a minimal ridge (bulge) on the inside, which influences the movement of the inner ball: sometimes the ball rolls along the ridge, sometimes it crosses it and sometimes it even bounces slightly, causing knocking pulses.
There is also never a constant position while it is being worn in the body: by bumping against the ridge and through the play of the muscles, the outer ball gradually rotates and changes its position. This means that the stimulating impulses also vary, which is a positive side effect, as the body adjusts to constant stimulation after a while and the effect of the stimulation would diminish.
It is a law of nature that any damping of an oscillation also means a weakening of the impulse, regardless of whether the inner sphere is coated, plastic is used instead of steel or the outer coating is made of silicone or plastic. This would mean that Viball would no longer be the ball with the highest momentum in the world, but the key question is: why exactly should we do this?
But the key question is: why exactly should we do this?
The only thing that counts for therapeutic use is maximum efficiency, and Viball fulfills this criterion 100 percent thanks to its ingenious design. And thus also that of erotic efficiency.
Furthermore, efficient use does not necessarily require wearing Viball at work or in public if someone has concerns: Long-term use could also be carried out at home or on occasions outside the home where such minimal noise should not be a nuisance: walking.
If we were to change Viball for noise reduction - how far should it go? For which occasions, external or internal environments would it be "quiet enough" and when? These are all very subjective assessments, often characterized by our own projection: "Everyone knows what I know", which of course lacks any realistic basis. That's why we leave it at that.
So decide for yourself when and where you want to wear Viball and don't let others decide. There are enough products full of such compromises, and therefore all with a much weaker effect than ours. Viball has a clear philosophy, and from this comes its own external aesthetic. Not for everybody, but for every body.
And quite a few customers even find a sound sensually appealing in certain situations, along the lines of "I know what you can't see..."
Yes, in addition to the pairs we offer, you can combine as you wish. Many of our customers have different sizes and combinations of balls, some couples have complete sets of all Viball sizes. Another side effect: larger balls in particular develop an additional resonance when in contact (with a smaller one). Some users prefer many small balls in a "cluster" or as an (anal) chain, the individual preferences and erotic possibilities are manifold.
Even alternating vaginal or rectal use is no problem, because Viball love balls are highly hygienic and can be sterilized in any way thanks to the polished surface of implant steel.
However, when the balls come into contact with each other, friction can cause stripes to appear on the surface because the balls rotate and move within the body. However, these stripes are only visible in the polish and cannot be felt, so they have no functional significance. If necessary, our balls can be repolished by stainless steel jewelry manufacturers.
We are often asked for even larger Viball models. From Hera's professional experience, we know that 60 mm makes sense therapeutically in many cases, but no more.
It is a misconception that a wide vaginal opening is a sign of weakened pelvic floor muscles. On the contrary, women who are very sexually active often have stronger than average pelvic floor muscles despite having a very flexible vaginal opening. Flexibility and elasticity do not necessarily mean weakness. People who do gymnastics and manage to do the splits after regular training do not have weaker inner adductor muscles in their thighs; on the contrary, they are more flexible and therefore more powerful if they are trained at the same time. Similarly, active sexuality also ensures the natural health of the pelvic floor.
However, regular extreme stretching WITHOUT the counterpart of strengthening through muscle contraction (e.g. as part of an erotic passion, so-called "stretching addiction") is not harmless, as this literally "overstretches" the bow. The result can be a prolapse of the bladder or uterus or even a prolapse. Everything has its limits...
That's why we leave it at 60 mm maximum. If you still want more, you can combine sizes.
During prolonged vaginal use, it should be ensured that Viball is held securely above the vaginal entrance without any tension. However, as these usually large models are also correspondingly heavy, we recommend our large models VB50, VB55 and VB60 in the light version, i.e. with significantly reduced weight, for particularly weak muscles.
If these balls do not hold or are pushed out by the uterus in the case of a uterine prolapse, preparatory training is necessary. There are two ways to do this:
To begin with, smaller balls are used for short-term, active exercises until the vaginal entrance has strengthened and narrowed sufficiently to bear the weight of a larger viball. This preparatory training can take several weeks and may also require intermediate stages of ball sizes.
An alternative to this is preparatory training with a large ball in the quadruped or knee-elbow position, ideally alternating with this in the supine position with the pelvis slightly raised. This way, the weight of the ball does not pull you down and you can use the significantly higher vibration impulse of the larger ball.
In all quadruped positions, you should try to 'pull the ball inwards', alternating with circular movements of the pelvis during the resting phases. Due to the intensive contact with the G-spot and cervix, these exercises have a strong erotic effect - which only benefits the strengthening of the pelvic floor muscles. Of course, nothing stands in the way of combining the two training methods mentioned above with different ball sizes.
Despite its unsurpassable efficiency, Viball cannot fulfill the expectation of being a "permanent pleasure dispenser" with the intensity of a battery-operated vibrator on a mechanical basis. With smaller Viball models, the effect is more gently AN-stimulating than directly ER-stimulating, but can be used much more permanently and permanently in everyday life than a battery-operated toy or prostate vibrator could achieve. Viball stimulation in the smaller sizes is usually below the threshold of perception, but the corresponding areas demonstrably react to the impulses through increased blood flow and unconscious muscle activity. The larger the models and the more intense the movements, the more directly perceptible the impulses become and the more intense the erotic stimulation. Very long stimulation with large models and strong movements can trigger orgasms and, in men, lead to an emptying of the seminal vesicle without orgasm.
In principle, men can use any size they can accommodate, and larger models are more efficient. However, it is impossible - just as with vaginal use - to determine the appropriate size based on biometric data such as age, height, stature, etc. It should also be possible for any man without anal experience to accommodate a 36 mm size after brief preparation if there is no disease in the anal area or psychological causes.
The stretchability of the anal muscle is rarely the cause of problems; human stool often has a larger diameter. But the (unconscious) ego usually wants to prevent an opening into the body - i.e. according to the female principle - and wants to hold on to the traditional male image, confessional conditioning, etc. Many men find it very difficult to overcome the hurdle of overcoming deep-seated patterns.
But "allowing instead of letting" is an extraordinarily enriching experience of the feminine principle, of absorbing, literally: integrating. All people have both feminine and masculine parts; according to the primal law of polarity, one cannot function without the other. When both principles are activated, potency problems often dissolve unexpectedly as a result - the "stream" of life flows again. And experiencing the other side within oneself broadens the horizon for many other fundamental connections in life. This physical manifestation of "opening up" or surrendering to the opening of the body through the partner will also bring about an opening of the psyche. This ancient hermetic principle of "below as above - above as below" is also used in yoga, tai chi and similar techniques. With the Theros FMS dilators, you can try out new terrain for yourself if the initial size of 36 mm is problematic - even for intensive and demonstrably healthy prostate massage. Or a woman can use dilators to gently "expand" her partner's horizon of experience and at the same time explore the male principle, which is just as necessary for a holistic experience - an exciting and unifying enrichment of erotic life together.
But be patient with yourself or your partner, the journey is the reward. Then "allowing instead of letting" will be an equally wonderful experience for both partners.
Viball is effective even with normal daily exercise. During sport, the stimulation is of course considerably more intense. A distinction must be made between rectal / anal and vaginal use.
The vaginal area is generally less muscular and has less support than the rectal area, which is why vaginal movements should be as smooth and flowing as possible. This is why there is the term "low impact sports" such as walking, cycling, gymnastics, yoga, light jogging, in short: sports without jumps, with permanent contact with the ground. Trampolining is the exact opposite: You should avoid it (even without a ball) if you have pelvic floor weakness.
For female runners: When running fast, the inner ball no longer rolls but bounces vertically. When it bounces downwards, its weight increases many times over. This completely overstrains weak pelvic floor muscles; in a healthy state, this tapping trains (and stimulates) intensively. Alternatively, you can carry a much smaller (and lighter) ball than usual, but the necessary tension will set a time limit. Or you can use a large, light ball, for which we offer the light versions (for VB50L).
As the rectal area is generally more stable and muscular, precautions such as those for vaginal use are not necessary. Intensive stimulation only has a digestive or laxative effect - as is sometimes the case with the first applications, see below: What do I need to bear in mind for the first few applications?
In men, the prostate reacts to intense stimulation with a feeling similar to sore muscles or like muscles after a very intensive massage. However, this is not necessarily unpleasant and disappears very quickly when the stimulation stops. No harmful effects are known.
Generally speaking, there are no universally valid instructions. Your own feelings are always the best indicator of what is good or not so good for you. Feel inside yourself and learn to perceive and understand your body's signals. Trust your "gut feeling" instead of looking for universal validity on the outside, because every body is unique - including yours.
You should not use Viball immediately outside the home, as the body is initially irritated by the new "guest" and may react with an increased urge to urinate or defecate until your nervous system has realized that this unfamiliar stimulation has nothing to do with it. This is why you should always use Viball rectally approx. 30 minutes after a bowel movement and only up to approx. 8 hours before the next bowel movement. This possible irritation at the beginning will subside after a few applications.
The extent to which Viball can be used for hemorrhoids and in what size depends on the degree and acute condition of the symptoms. It is not uncommon for grade 1 and 2 haemorrhoids in men to disappear "as a side effect" when using a Viball to activate the prostate, because the ball pushes the haemorrhoids back into the surrounding tissue and prevents them from coming out again through rectal application. This effect is enhanced with a second ball of the same size. In addition, implant steel has a decongestant effect and prevents an increase in body temperature and thus inflammation.
In addition, Viball can effectively support the treatment of hemorrhoids with FMS dilators (link to Treating hemorrhoids with Viball and FMS dilators).
Viball love balls can also be used as long-lasting cooling bodies for cryotherapy (cold therapy) for hemorrhoids. Viball love balls are cooled for several hours in the refrigerator or freezer. The air inside and the minimal contact surface to the outer ball insulate the inner ball, which is why it only takes on temperatures very slowly, but can then retain them for a very long time. The outer sphere has a balancing effect when releasing the temperature, as it absorbs body heat.
Using the same principle as a cooling element, you can use Viball as a long-lasting heating element to relieve pain, relax cramps or for erotic applications through intensive heating. Here, too, the inner ball takes on temperatures very slowly due to the insulating layer of air and the minimal contact surface with the outer skin, but also maintains the temperature for a particularly long time.
For controlled warming, it is best to use a baby food warmer with an adjustable temperature. Depending on the size of the scoop, this can take hours, but it is safe.
Heating Viball in a pot of water is faster, but the difference to body temperature is extremely high and can lead to burns in extreme cases if the excessively high temperature of the inner ball is transferred to the body at the point of contact with the outer shell.
After warming/heating, hold the Viball in your hand for about 5 minutes and test the temperature on the sensitive skin at the entrance to the application. Only then do you insert the ball.
The inner ball now emits the heat in the application area and creates a pain-relieving effect, intensive relaxation or erotic stimulation. With larger balls, the effect is naturally more intense and longer-lasting than with smaller ones due to the greater mass.
Note: As the application described above allows considerable tolerances within the possible designs, we do not accept any liability for the information provided and use is at your own risk.