Viball®: Kegel Balls and Medical Device for Men

*NOTE: We generally use the term “Kegel balls”. Other common names include “Ben Wa balls”, “Geisha balls”, “vaginal balls”, “Smartballs” and similar terms. All information on this page applies equally to these terms.

Stimulate Your Pelvic Floor, Potency and Prostate With Kegel Balls* for Men

With Viball® Kegel balls* for men, you support the healthy function of your pelvic floor, your virility and your continence. They help maintain firm erections during sexual intercourse, are effective against incontinence and hemorrhoids, and have been shown to reduce the risk of prostate cancer.

With Viball® Kegel balls* you can stimulate your prostate and improve erections – without medication, special diets or exercises – while supporting a strong pelvic floor. Simply wear them in daily life: insert the ball gently into the anus with your finger, where it continuously provides prostate stimulation. As certified medical devices with proven effectiveness, Viball® Kegel balls* are genuine therapy balls – with the pleasant “side effect” of intense erotic stimulation, because the prostate is the male G-spot.

A Viball® Kegel ball* massages the pelvic floor, prostate and root of the penis through vibration – with every movement during daily life or sport. In this way, it supports the healthy function of the prostate, pelvic floor and potency and – importantly – is also highly effective against hemorrhoids.

Be surprised by what else is possible … Discover Viball® for yourself:

These Features Make Viball® Unique

Every detail of a Viball® is uncompromisingly designed for quality. Our goal at Theros: to create the best Kegel balls* in the world. Here is why:

• Only Viball® Kegel balls are made from high-quality implant-grade steel instead of silicone. Pure spherical design, no unnecessary extras, with a polished surface. This makes them – uniquely among Kegel balls – especially suitable for prostate stimulation in men: easy to insert, highly hygienic, free from harmful substances and maximally effective.
• Precisely calculated components enable every Viball® to deliver the most intense stimulation of any Kegel ball* – physics simply allows no more. Ideal for stimulating prostate function, strengthening potency and pelvic floor muscles, and helping with incontinence or urinary problems.
• Immediate stronger erections during sexual intercourse through tapping impulses that intensely stimulate the prostate during sexual movement – for pleasure, intimacy and fulfilling sex.
• Six sizes for beginners and experienced users: from small (36 mm) to very large and heavy, available as a single ball or as a pair.
• Use Anytime, Anywhere, because Viball® remains completely inside the body – invisible to others.
• Also suitable for women during vaginal intercourse – for more intense contact and stronger orgasms.
• Extremely sustainable and 100% recyclable: permanently hygienic, no silicone waste and no environmental burden.
• Certified medical device with proven effectiveness and CE-confirmed safety of use.
  
  
  

Applications of Viball® Kegel Balls*

• Pelvic floor problems (often associated with back pain) – plus pelvic floor training with balls
• Stimulation of prostate function, including support for prostate conditions such as prostatitis or enlarged prostate
• Erectile dysfunction (preventive use)
• Immediate strengthening of erections during sex through prostate stimulation (tapping impulses)
• Incontinence
• Hemorrhoids

Six Sizes From 36–60 mm for Every Man

Viball® Kegel balls* are available for every man – whatever size you need: from small to very large and heavy, from first rectal experiences to advanced use. Tips on choosing the optimal size can be found under “Frequently Asked Questions”. If 36 mm feels too challenging at first, our FMS dilators can help you open gently and quickly – making it easier to use larger models that provide even more intense prostate stimulation.

The World's Most Effective Kegel Balls

Conventional Kegel balls* for women often generate too little impulse strength for effective prostate stimulation. In Viball® Kegel balls*, the ratio between the inner and outer ball has been precisely calculated for every size. The vibrating inner balls are made from stainless steel, while the outer balls are even made from anti-allergenic implant-grade steel AISI 316L. Density, resonance and transmission of vibration to the body are therefore many times more intense than with silicone.

Immediate Erection Enhancement Through Prostate Stimulation

During movement in sexual intercourse, Viball® Kegel balls create a tapping massage on the root of the penis and the prostate, strengthening erections naturally – without medication. As ball size increases, the effect grows exponentially. The stimulation becomes even more intense when used together with a partner.

Additional Stimulation Through Internal Mobility

A Viball® moves together with your muscles because its spherical shape and mirror-smooth surface prevent fixation or tissue adhesion – unlike segmented shapes or models with strings, which can become trapped. This additional movement stimulates the root of the penis, the sphincter muscles and the prostate – a feature unique to Viball®.

From an anatomical perspective, the ball cannot move deeper into the body beyond the rectum. Even if external manipulation causes it to move further inward, natural bowel movements will remove it again. Unlike elongated sex toys, a ball cannot become wedged inside the body.

No String? Completely Safe!

Strings protruding from the body are particularly unhygienic for rectal use. Removing a Viball® without any aids is practical for every man and is explained in the instructions for use. Viball® Kegel balls cannot “disappear” inside the body – this is guaranteed by their proven safety of use as a medical device.

A special medical application sleeve for easier removal is only useful in rare cases such as spasms, scarring or anal cramps. These sleeves are available at low cost in our shop.

For added reassurance, every Viball® includes a medical application sleeve for “the first time”. This allows you to stimulate your prostate without risk and test removal beforehand.

Hemorrhoids? Viball® Helps and Prevents Them

Viball® Kegel balls can help reduce existing hemorrhoids and prevent them from prolapsing again. For inflamed hemorrhoids, chilled application (refrigerator) is suitable as cold therapy – see the instructions for use.

For the acute treatment of inflamed hemorrhoids, we additionally recommend our FMS dilators for more intensive cooling and targeted manual reduction. Intensive prostate massage or “prostate milking” – with or without orgasm – is also considerably easier with dilators than with a finger.

“Milking the Prostate” – for Health and Wellbeing

Prostatic fluid release (also known as “prostate milking”) is a specialised prostate massage technique in which gentle pressure is applied with one or more fingers until prostatic fluid is released. This stimulation of the male G-spot has been shown to support prostate health and help reduce the risk of prostate cancer. Depending on individual sensitivity, a prostate orgasm may even occur, which is why this practice is also popular in erotic contexts.

With prolonged and consistent movement, Viball® balls – especially the larger sizes – can stimulate the prostate intensely enough to trigger the release of prostatic fluid as well.

Performing manual prostate massage or prostate milking with your own hand is very difficult for anatomical reasons. For this reason, we have developed a tool for efficient prostate massage: discover Theros® ProstaSphere.

No Sensation During Sexual Intercourse Anymore?
Viball® Can Help

A common issue is a size mismatch between penis and vagina. The result is insufficient genital contact (friction), weaker erections in men, reduced sensation in women and difficulties achieving orgasm. Vaginal use of a Viball® in the appropriate size naturally creates more intense contact. Its mirror-smooth surface prevents skin irritation, while the ball does not feel like a foreign body but instead enhances contact through gentle vibration.

In addition, Viball® can improve the ability to achieve vaginal orgasms through stimulation of the cervix and G-spot, creating a new and more intense experience for both partners.

Premature Ejaculation

With larger balls, the tapping massage of the prostate during sexual intercourse becomes more noticeable. Combined with concentration exercises, this may help counteract premature orgasm or premature ejaculation (ejaculatio praecox).

Viball® Is a Certified Medical Device

Viball® is a certified medical device and fulfils all legal requirements regarding safety of use and proven effectiveness for prostate stimulation. Implant-grade steel AISI 316L meets clinical standards for biocompatibility and hygiene – even after many years of use.

Implant-Grade Steel Instead of Silicone – Here Is Why:

• Optimal vibration characteristics and the best possible transmission of vibrations to the body
• Greater weight = higher vibration intensity for prostate stimulation
• Maximum biocompatibility, with no binding agents as found in silicone
• Polished surface: freely mobile inside the body and gentle in contact with tissue and genitals
• 100% odour-resistant and discolouration-resistant, unlike silicone – permanently hygienic
• Maximum durability and sustainability

Invisible to Others – Wherever and Whenever You Want

Viball® Kegel balls* remain invisible in every situation because, like an implant, they stay completely inside your body – even during sex. If you wish, they can remain your sensual secret while surprising your partner with their effects.

Viball® – good for health, good for couples and good for love.

Free Therapeutic Consultation

Under “Frequently Asked Questions (FAQ) About Viball®” you will find more information. In our guides, we cover specific topics in greater detail. If you still have questions, feel free to contact me personally – I will reply myself.

Hera Schulte Westenberg

Quality, safety, warranty

Quality, Safety, Warranty

• A certified laboratory verifies the quality and composition of the implant-grade steel.
• Every Viball® is tested multiple times for stability, a flawless surface and perfect mechanical properties.
• Every Viball® comes with a three-year warranty.