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Fun Factory - Smartballs Duo - Kegel Balls - Purple

Fun Factory - Smartballs Duo - Kegel Balls - Purple

  • ✔️ Supports pelvic floor strengthening through passive resistance training
  • ✔️ Dual-ball design suits intermediate pelvic floor training users
  • ✔️ Body-safe silicone construction — non-porous and hypoallergenic
  • ✔️ Soft retrieval cord ensures safe, comfortable removal every time
  • ✔️ Helps address stress urinary incontinence with consistent daily use

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What Are Kegel Balls and How Can They Help You?

 

If you've been looking for a simple, discreet way to work on your pelvic floor, you're not alone. Millions of women in the UK experience pelvic floor weakness at some point in their lives — whether after childbirth, during the menopause, or simply as a result of ageing. The kegel balls in the Fun Factory Smartballs Duo range offer a practical, body-safe option for passive pelvic floor training that fits around your daily routine. Available in a striking purple colourway, this dual-ball design is made from body-safe silicone and is suitable for those who want to progress beyond a single-ball trainer. You can explore a wider range of intimate wellness products in our women's health collection.

Pelvic floor dysfunction is far more common than many people realise. The NHS notes that symptoms such as stress urinary incontinence — leaking urine when you cough, sneeze, or exercise — affect around one in three women at some point. Pelvic floor exercises are consistently recommended as a first-line approach, and weighted vaginal trainers like the Smartballs Duo can complement that effort by encouraging the muscles to engage passively throughout the day.

 

How Do the Fun Factory Smartballs Duo Work?

 

The mechanism is elegantly straightforward. Once inserted vaginally, the dual balls create a gentle internal weight. Your pelvic floor muscles must contract around them to keep them in place — essentially performing a low-level, continuous workout without you having to think about it consciously. This passive resistance approach mirrors the principle behind weighted vaginal cones, which have been studied as an adjunct to pelvic floor muscle training.

  • Dual-ball design provides slightly more resistance than a single ball, making it suitable for those who have already built some baseline pelvic floor strength.
  • The inner rattling ball within each sphere creates subtle movement, which prompts additional involuntary muscle contractions.
  • A soft silicone retrieval cord allows for safe, easy removal at any time.
  • Body-safe silicone construction means the material is non-porous, hypoallergenic, and easy to clean thoroughly between uses.

 

Who Should Consider Using the Smartballs Duo?

 

These kegel balls are designed for adult women who want to incorporate pelvic floor training into their daily lives. They are particularly well suited to those who have already tried single kegel balls and are ready to progress, or those who find it difficult to maintain a consistent manual exercise routine. That said, they are not appropriate for everyone.

  • Women experiencing mild to moderate stress urinary incontinence who want a non-pharmacological training aid.
  • Those looking to maintain pelvic floor tone after childbirth, once fully healed and with medical clearance.
  • Women approaching or going through the menopause, when pelvic floor changes are common.
  • Anyone who has been advised by a GP or physiotherapist to undertake regular pelvic floor exercises.

If you have had recent pelvic surgery, are currently pregnant, or have an active pelvic infection, you should speak to your GP before using any internal pelvic floor device.

 

How Do the Smartballs Duo Compare to Other Pelvic Floor Trainers?

 

Feature Fun Factory Smartballs Duo Single Kegel Ball
Number of balls Two (dual) One
Resistance level Moderate — suited to intermediate users Lower — suited to beginners
Material Body-safe silicone Varies (silicone, ABS plastic)
Retrieval cord Yes — soft silicone Usually yes

 

Are the Smartballs Duo Clinically Suitable and How Should They Be Stored?

 

From a clinical standpoint, the Smartballs Duo are a medical-grade intimate device rather than a licensed medicine. They are made from body-safe, non-porous silicone, which means they do not harbour bacteria when cleaned correctly. Always wash them with warm water and a mild, fragrance-free soap — or a dedicated intimate device cleaner — before and after every use. Store them in a clean, dry pouch away from direct sunlight and extreme temperatures. If you use personal lubricant with them, always choose a water-based formula, as silicone-based lubricants can degrade silicone devices over time. You can browse compatible options in our personal lubricants collection.

This product is a medical device. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

Fun Factory Smartballs Duo - Kegel Balls - Purple specifications
Treatment category Pelvic floor training / intimate wellness device
Mechanism of action Passive resistance training via weighted vaginal insertion
Effective for Pelvic floor muscle strengthening
Suitable for Adult women with some baseline pelvic floor strength
Active ingredient None — medical device
UK classification General sale / intimate wellness device
Preparation Dual silicone kegel balls with retrieval cord
Route of administration Vaginal
Colour Purple
Brand Fun Factory

Specifications of Fun Factory Smartballs Duo - Kegel Balls - Purple

 

What Are the Fun Factory Smartballs Duo and What Are They Used For?

 

The Fun Factory Smartballs Duo are a dual-ball pelvic floor training device designed for vaginal use. They are used to support and strengthen the pelvic floor muscles — the group of muscles and connective tissues that support the bladder, bowel, and uterus. Weak pelvic floor muscles can contribute to stress urinary incontinence, reduced sensation, and pelvic organ prolapse. The NHS recommends pelvic floor exercises as a first-line intervention for these conditions, and devices like the Smartballs Duo can help you maintain consistent engagement with that training.

This is not a medicinal product. It is a body-safe intimate wellness device intended to complement — not replace — a structured pelvic floor exercise programme. If you have been diagnosed with pelvic organ prolapse or significant urinary incontinence, speak to your GP or a women's health physiotherapist before using any internal device.

 

What Do You Need to Know Before Using the Smartballs Duo?

 

Before using these kegel balls, it is important to consider whether they are appropriate for your current health situation. There are certain circumstances in which internal pelvic floor devices should be avoided entirely.

Do not use the Smartballs Duo if you:

  • Are currently pregnant.
  • Are within six weeks of vaginal delivery or caesarean section, or have not yet received medical clearance post-partum.
  • Have had recent pelvic or abdominal surgery.
  • Have an active vaginal or pelvic infection, including thrush or bacterial vaginosis.
  • Have been diagnosed with pelvic organ prolapse without first consulting a healthcare professional.
  • Have unexplained pelvic pain or discomfort.

Drug and product interactions:

  • No known drug interactions — this is a physical device, not a medicine.
  • Do not use silicone-based lubricants with this product, as they can degrade the silicone material. Use only water-based lubricants.
  • Avoid use alongside other internal vaginal devices simultaneously.

 

How Should You Use the Fun Factory Smartballs Duo?

 

Using the Smartballs Duo correctly is straightforward, but it is worth taking your time the first few times to ensure comfort and safety. Always clean the device before and after each use.

  1. Wash the Smartballs Duo thoroughly with warm water and a mild, fragrance-free soap. Allow to dry completely.
  2. Apply a small amount of water-based lubricant to the first ball.
  3. Find a comfortable position — lying down or standing with one foot raised on a chair works well for most people.
  4. Gently insert the first ball vaginally, followed by the second, ensuring the retrieval cord remains outside the body at all times.
  5. Stand up and engage your pelvic floor muscles gently to hold the balls in place.
  6. Wear for 15–30 minutes initially. As your strength improves, you may gradually increase wear time up to a maximum of two hours per session.
  7. To remove, relax your pelvic floor muscles and gently pull the retrieval cord. If you experience any difficulty, bear down gently as if having a bowel movement.
  8. Clean the device again after removal and store in a clean, dry place.
Indication User Group Recommended Wear Time Frequency
Pelvic floor strengthening (beginner) Adult women — new to kegel devices 15–30 minutes Once daily
Pelvic floor maintenance (intermediate) Adult women — some prior training Up to 2 hours Once daily or as tolerated

 

What Are the Possible Side Effects of the Smartballs Duo?

 

As a physical device rather than a medicine, the Smartballs Duo do not carry pharmacological side effects. However, some users may experience mild physical discomfort, particularly when first starting out. If you notice any of the following, stop use and consult your GP.

Common side effects:

  • Mild vaginal discomfort or a sensation of fullness, especially during initial use.
  • Temporary pelvic pressure or heaviness.
  • Mild muscle fatigue in the pelvic floor after extended wear.

Less common side effects:

  • Vaginal irritation or mild soreness if used without adequate lubrication.
  • Difficulty removing the device — this is usually resolved by relaxing the pelvic floor muscles fully.
  • Increased urinary urgency in some users, particularly those with an overactive bladder.

If you experience significant pain, unusual discharge, or bleeding at any point, remove the device immediately and seek medical advice. You may also find it helpful to browse our cystitis and bladder infection section if you have concerns about urinary symptoms.

 

How Should You Store the Fun Factory Smartballs Duo?

 

  • Store in a clean, dry pouch or case — ideally the one provided — away from other devices.
  • Keep away from direct sunlight and sources of heat, which can degrade silicone over time.
  • Do not store in airtight containers while still damp, as this can encourage bacterial growth.
  • Keep out of reach of children.
  • Inspect the device before each use for any signs of damage, cracking, or deterioration. Do not use if damaged.
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Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy Fun Factory Smartballs Duo kegel balls online in the UK?

You can buy the Fun Factory Smartballs Duo kegel balls directly from Cured Pharmacy, a GPhC-registered UK online pharmacy, for £12.95. Orders are dispatched with discreet packaging so your privacy is always protected. You can also browse our full women's health collection for related products.

How do kegel balls work to strengthen the pelvic floor?

Kegel balls work by providing a gentle internal weight that your pelvic floor muscles must contract around in order to hold in place. This creates a form of passive resistance training — your muscles are working even when you're not consciously thinking about it. Over time, this consistent low-level engagement can help improve muscle tone, reduce urinary leakage, and support overall pelvic health.

How do I use the Fun Factory Smartballs Duo step by step?

Start by washing the device with warm water and a mild soap, then apply a water-based lubricant to the first ball. Insert each ball gently, one at a time, leaving the retrieval cord outside the body. Begin with 15–30 minutes of wear and gradually increase the duration as your pelvic floor strength builds.

How long should I wear kegel balls each day?

If you are new to pelvic floor training devices, start with 15–30 minutes per session and see how your body responds. As your muscles become stronger, you can gradually increase wear time up to a maximum of two hours per session. Never wear them overnight or for extended periods beyond what feels comfortable.

Can kegel balls help with urinary incontinence?

Yes — the NHS recommends pelvic floor exercises as a first-line treatment for stress urinary incontinence, and kegel balls can support that training by encouraging passive muscle engagement. They are not a cure, but consistent use alongside a structured exercise programme may help reduce leakage over time. Always speak to your GP if your symptoms are significant or worsening.

Are the Fun Factory Smartballs Duo safe to use?

For most healthy adult women, the Smartballs Duo are safe when used as directed. They are made from body-safe, non-porous silicone and include a soft retrieval cord for easy removal. They should not be used during pregnancy, immediately after childbirth, or following pelvic surgery without explicit medical clearance.

Who is eligible to use the Fun Factory Smartballs Duo?

These kegel balls are designed for adult women who want to strengthen their pelvic floor muscles and who have some baseline pelvic floor strength — making them more suitable for intermediate users than complete beginners. They are particularly relevant for women experiencing mild stress urinary incontinence, those post-partum (with medical clearance), and women going through the menopause. Anyone with pelvic organ prolapse, active infection, or recent surgery should consult a healthcare professional first.

What happens if I find the Smartballs Duo difficult to remove?

If you have difficulty removing the device, try to relax your pelvic floor muscles fully and bear down gently, as if having a bowel movement — this should help the balls move downward. Squatting or changing position can also help. If you are still unable to remove them after several attempts, seek medical assistance rather than forcing removal.

What are the alternatives to the Fun Factory Smartballs Duo?

Alternatives include single kegel balls for those just starting out, weighted vaginal cones, or a guided pelvic floor physiotherapy programme recommended by your GP or women's health physiotherapist. For those who prefer a non-internal approach, manual pelvic floor exercises (Kegel exercises) performed without any device are equally valid and recommended by the NHS. You can also explore our condoms and sexual health section for other intimate wellness options.

How do I clean the Fun Factory Smartballs Duo properly?

Wash the Smartballs Duo with warm water and a mild, fragrance-free soap or a dedicated intimate device cleaner before and after every single use. Rinse thoroughly to remove all soap residue, then allow to air dry completely before storing. Never submerge the device in boiling water or use alcohol-based cleaners, as these can damage the silicone.

Can I use lubricant with the Fun Factory Smartballs Duo?

Yes — using a lubricant is actually recommended to make insertion more comfortable, especially for first-time users. However, you must use only a water-based lubricant with this product. Silicone-based lubricants can chemically degrade silicone devices over time, compromising the material's integrity and safety.

How long does it take to see results from using kegel balls?

Most people begin to notice improvements in pelvic floor strength and reduced urinary leakage after around 8–12 weeks of consistent use, though this varies depending on baseline muscle strength and how regularly the device is used. The NHS notes that pelvic floor exercises generally take several months to show meaningful results. Consistency is key — short, regular sessions are more effective than occasional long ones.

Can I use the Smartballs Duo after having a baby?

You should wait until you have fully healed from childbirth and received explicit clearance from your midwife, GP, or women's health physiotherapist before using any internal pelvic floor device. This is typically no earlier than six weeks after a vaginal delivery, and potentially longer after a caesarean section or complicated birth. Starting too early can cause harm rather than help.

How long can I continue using kegel balls?

There is no fixed upper limit on how long you can use kegel balls as part of a pelvic floor training routine, provided you continue to find them comfortable and beneficial. Many women use them as an ongoing maintenance tool rather than a short-term fix. If you experience any new discomfort, pain, or changes in symptoms, stop use and speak to your GP or a pelvic health physiotherapist.

What does the latest research say about kegel balls and pelvic floor training?

Research supports pelvic floor muscle training as an effective intervention for stress urinary incontinence, with the NHS and NICE both recommending it as a first-line treatment. Weighted vaginal devices, including kegel balls, have been studied as adjuncts to standard pelvic floor exercise programmes, with evidence suggesting they can improve adherence and muscle activation. A women's health physiotherapist can advise on the most evidence-based approach for your individual situation.

How Should You Use the Fun Factory Smartballs Duo?

Using the Smartballs Duo correctly makes all the difference to both comfort and effectiveness. Always clean the device thoroughly before and after every session, and never use silicone-based lubricants — water-based only.

What Is the Correct Dose of the Fun Factory Smartballs Duo?

There is no pharmacological dose for this device — "dosing" refers to wear time and frequency of use. Starting conservatively and building up gradually is the safest approach, particularly if you are new to internal pelvic floor trainers.

When Is the Best Time to Use the Fun Factory Smartballs Duo?

Many users find it easiest to incorporate the Smartballs Duo into their morning routine — wearing them during light household tasks, a gentle walk, or other low-impact daily activities. Avoid wearing them during vigorous exercise, swimming, or any activity that involves significant physical exertion until you are confident in your pelvic floor strength. Do not wear them to bed or for extended periods beyond two hours.

How Long Can You Use the Fun Factory Smartballs Duo For?

The Smartballs Duo can be used as part of an ongoing pelvic floor maintenance routine for as long as they remain comfortable and beneficial. There is no fixed treatment duration — many women use them regularly over months or years as a preventative measure. If you notice any new discomfort, pain, or changes in urinary symptoms, stop use and consult your GP or a pelvic health physiotherapist for personalised guidance.

Do not exceed the recommended wear time. If in doubt, speak to your pharmacist.

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What Are the Most Common Side Effects of the Fun Factory Smartballs Duo?

Because the Smartballs Duo is a physical device rather than a medicine, it does not produce pharmacological side effects. However, some users — particularly those new to internal pelvic floor trainers — may experience mild physical sensations during or after use. These are generally temporary and resolve on their own.

  • A sensation of fullness or pressure inside the vagina, especially during initial use.
  • Mild pelvic heaviness during wear.
  • Pelvic floor muscle fatigue after extended sessions.

What Are the Less Common Side Effects of the Fun Factory Smartballs Duo?

Less commonly, some users may experience mild irritation or discomfort, usually related to insufficient lubrication or wearing the device for too long in the early stages of use. These effects are avoidable with correct technique.

  • Vaginal soreness or mild irritation if inserted without adequate water-based lubricant.
  • Increased urinary urgency, particularly in those with an overactive bladder.
  • Difficulty removing the device — usually resolved by fully relaxing the pelvic floor and bearing down gently.
  • Mild lower abdominal discomfort if worn for longer than recommended.

What Are the Serious Side Effects of the Fun Factory Smartballs Duo?

Serious adverse effects are rare when the device is used correctly and kept clean. However, you should stop use immediately and seek medical advice if you experience any of the following, as they may indicate infection, injury, or an underlying condition that requires assessment.

  • Significant or worsening pelvic pain during or after use.
  • Unusual vaginal discharge or an unpleasant odour following use.
  • Vaginal bleeding not related to your menstrual cycle.
  • Inability to remove the device after following the recommended removal steps.

What Should You Do If You Experience Side Effects?

If you notice mild discomfort, try reducing your wear time and ensuring you are using sufficient water-based lubricant. Most minor side effects resolve quickly once the device is removed. If symptoms persist, worsen, or you are concerned at any point, remove the device and contact your GP or pharmacist. Do not continue using the Smartballs Duo if you are in pain.

Can the Fun Factory Smartballs Duo Interact With Other Products?

As a physical device, the Smartballs Duo has no known drug interactions. However, it is important to note that silicone-based lubricants will chemically degrade the silicone material over time, so only water-based lubricants should be used. Avoid using the device simultaneously with other internal vaginal products. If you are using any topical vaginal treatments — such as those for thrush or bacterial vaginosis — do not use the Smartballs Duo until the course of treatment is complete and symptoms have fully resolved.

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 14 Sep 2026

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