How do kegel balls like the Smartballs Duo work?

Kegel balls work by creating a gentle internal resistance that encourages your pelvic floor muscles to contract involuntarily. The Smartballs Duo contains two weighted inner balls that move as you move, stimulating the surrounding muscles passively throughout the day.

How long should I wear the Smartballs Duo each day?

Beginners should start with 15 to 30 minutes per day and gradually build up to a maximum of two hours. Always remove the device before sleeping or engaging in strenuous physical activity.

Are there any side effects of using kegel balls?

Some users experience mild vaginal discomfort or a feeling of pressure during initial use, which typically resolves as the muscles adapt. If you experience pain, unusual discharge, or persistent discomfort, remove the device and consult your GP.

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Fun Factory Smartballs Duo - White/Pastel lilac

✔️ Dual weighted balls passively strengthen pelvic floor muscles daily
✔️ Supports mild stress urinary incontinence management naturally
✔️ Medical-grade silicone — hypoallergenic, latex-free, body-safe
✔️ Discreet wearable design suits busy everyday routines
✔️ Suitable for postpartum pelvic floor rehabilitation with clearance

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What Are Kegel Balls and How Do They Help?

The kegel balls category has grown significantly in recent years — and for good reason. The Fun Factory Smartballs Duo in White/Pastel Lilac is a dual pelvic floor training device designed to help you strengthen your pelvic floor muscles through gentle, passive resistance during everyday movement. Priced at £24.99, it offers an accessible, non-pharmacological route to better pelvic health. If you're exploring options for pelvic floor support, you might also find it useful to browse our women's health collection for complementary products.

Fun Factory is a well-regarded German brand known for body-safe materials and thoughtful design. The Smartballs Duo is made from medical-grade silicone with a TPE retrieval cord, making it body-safe, latex-free, and easy to clean. The soft lilac and white colourway is subtle and discreet — a small detail, but one that matters to many users.

How Does the Fun Factory Smartballs Duo Work?

The mechanism is elegantly simple. Inside each silicone ball sits a smaller weighted inner ball. As you move throughout your day — walking, standing, climbing stairs — those inner balls shift and roll, creating a gentle vibration-like sensation. Your pelvic floor muscles respond by contracting involuntarily to keep the device in place. Over time, this repeated micro-contraction builds muscle tone without requiring you to consciously perform Kegel exercises.

Dual-ball design provides more resistance than a single ball, making it suitable for those with some existing pelvic floor awareness
Passive training means muscles work without active concentration — ideal for busy daily routines
Medical-grade silicone construction ensures the device is non-porous, hypoallergenic, and easy to sterilise
Soft retrieval cord allows safe, comfortable removal at any time

Who Should Use the Fun Factory Smartballs Duo?

This device is designed for adults with a vagina who want to proactively support their pelvic floor health. It's particularly well-suited to those who struggle to maintain a consistent active Kegel exercise routine, or who want to complement physiotherapy-led pelvic floor rehabilitation. That said, it isn't appropriate for everyone.

Adults looking to maintain or improve pelvic floor muscle tone
Those experiencing mild stress urinary incontinence (leaking when sneezing, coughing, or laughing)
Individuals postpartum who have been cleared by their midwife or GP to resume pelvic floor training
Anyone wanting a discreet, wearable alternative to active Kegel exercises

It is not recommended for use during pregnancy, immediately after childbirth, or following pelvic surgery without explicit medical clearance. If you have an IUD (coil) fitted, speak to your GP before use.

How Does the Smartballs Duo Compare to a Single Kegel Ball?

Feature	Fun Factory Smartballs Duo	Single Kegel Ball
Number of balls	Two	One
Resistance level	Moderate — suited to intermediate users	Lower — better for beginners
Material	Medical-grade silicone, latex-free	Varies by brand
Retrieval cord	Yes — soft TPE cord	Usually yes
Price	£24.99	Typically £10–£20

Is the Smartballs Duo Clinically Safe to Use?

Yes — when used as directed, the Fun Factory Smartballs Duo is considered safe for most healthy adults. The medical-grade silicone is non-porous, meaning bacteria cannot penetrate the surface, which significantly reduces infection risk when the device is cleaned properly after each use. Always use a water-based lubricant with silicone toys to preserve the material integrity. If you're managing any pelvic health conditions alongside your training, our cystitis and bladder infection collection may offer additional support products worth considering.

Kegel balls are a non-pharmacological device, not a medicine. However, if you have an underlying pelvic health condition, a history of pelvic organ prolapse, or are recovering from surgery, always seek medical advice before starting any pelvic floor training programme.

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 - White/Pastel Lilac specifications

Treatment category	Pelvic floor training / sexual wellness
Mechanism of action	Passive pelvic floor muscle stimulation via weighted inner balls
Effective for	Strengthening pelvic floor muscles; mild stress urinary incontinence support
Suitable for	Adults with a vagina; postpartum (with medical clearance)
Active ingredient	None — non-pharmacological device
UK classification	General sale — no prescription required
Preparation	Dual silicone ball device with TPE retrieval cord
Route of administration	Vaginal

Specifications of Fun Factory Smartballs Duo - White/Pastel Lilac

What Is the Fun Factory Smartballs Duo and What Is It Used For?

The Fun Factory Smartballs Duo is a dual pelvic floor training device intended for vaginal use. It is designed to help strengthen the pelvic floor muscles — the group of muscles and connective tissues that support the bladder, bowel, and uterus. Weak pelvic floor muscles are associated with stress urinary incontinence, reduced sexual sensation, and pelvic organ prolapse. The NHS recommends pelvic floor exercises as a first-line approach for managing these conditions, and devices like the Smartballs Duo can support that training passively throughout the day.

This is not a medicinal product. It is a body-safe wellness device intended to complement — not replace — professional pelvic floor physiotherapy where that has been recommended. If you're unsure whether pelvic floor training is right for you, speak to your GP or a women's health physiotherapist first.

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

Before using this device, please read the following carefully. Certain situations mean this product may not be appropriate for you right now.

Do not use the Smartballs Duo if you:

Are currently pregnant
Are within six weeks of vaginal delivery or caesarean section (always seek GP or midwife clearance first)
Have recently undergone pelvic or abdominal surgery
Have an active vaginal or urinary tract infection
Have been diagnosed with pelvic organ prolapse (grade 2 or above) without physiotherapy guidance
Have an intrauterine device (IUD/coil) fitted — consult your GP before use
Experience pain during vaginal insertion of any kind

Known interactions:

No pharmacological interactions — this is a non-medicinal device
Avoid use with silicone-based lubricants, as these can degrade the silicone surface of the device
Use only water-based lubricants with this product

How Should You Use the Fun Factory Smartballs Duo?

Using the Smartballs Duo correctly is important for both safety and effectiveness. Always clean the device thoroughly before and after each use with warm water and a mild, fragrance-free soap or a dedicated toy cleaner. Pat dry before storage.

Wash your hands thoroughly with soap and water before handling the device
Apply a generous amount of water-based lubricant to the device and to the vaginal opening
In a comfortable position (lying down or squatting), gently insert the first ball, then the second, leaving the retrieval cord outside the body at all times
Stand up slowly and check you feel comfortable — there should be no pain or significant pressure
Wear the device during light daily activities such as walking or light housework
To remove, relax your pelvic floor muscles and gently pull the retrieval cord while bearing down slightly
Clean the device immediately after removal and store in the supplied bag

Indication	User Group	Starting Duration	Maximum Daily Wear
Pelvic floor toning	Adults (beginner)	15–30 minutes	Up to 2 hours
Mild stress incontinence support	Adults (intermediate)	30–60 minutes	Up to 2 hours
Postpartum rehabilitation (with clearance)	Adults (post-6 weeks)	15 minutes	Up to 1 hour initially

Never wear the device for more than two hours at a time, and always remove it before sleeping, swimming, or exercising vigorously. If you're also managing bladder health concerns, our cystitis and bladder infection range includes products that may support overall urinary wellbeing.

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

As a non-pharmacological device, the Smartballs Duo does not carry the same side effect profile as a medicine. However, some users do experience mild physical responses, particularly during initial use.

Common side effects (may affect some users):

Mild vaginal discomfort or a feeling of fullness during first use
Temporary pelvic pressure, especially when standing or walking
Mild muscle fatigue in the pelvic floor after extended wear

Less common side effects (seek advice if these occur):

Persistent discomfort or pain during or after use
Unusual vaginal discharge or odour following use — this may indicate irritation or infection
Difficulty removing the device — remain calm, relax your muscles, and try again; if unsuccessful, seek medical assistance
Skin irritation or allergic reaction (rare, given the hypoallergenic silicone material)

Stop using the device immediately if you experience pain, bleeding, or any symptoms that concern you, and contact your GP. For general women's health support, you can also explore our women's health collection.

How Should You Store the Fun Factory Smartballs Duo?

Store in the supplied storage bag in a clean, dry location
Keep away from direct sunlight and extreme heat, which can degrade silicone over time
Do not store in contact with other silicone toys — silicone-on-silicone contact can cause surface degradation
Keep out of reach of children
Do not store in a damp environment such as a bathroom cabinet without adequate ventilation
Inspect the device before each use — do not use if the silicone is cracked, torn, or the retrieval cord is damaged

References

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Written and reviewed by our qualified team

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 online in the UK?

You can buy the Fun Factory Smartballs Duo White/Pastel Lilac directly from Cured Pharmacy online for £24.99 with discreet delivery. No prescription is required as it is a non-pharmacological pelvic floor training device. It is also available from selected sexual health and wellness retailers across the UK.

How do kegel balls like the Smartballs Duo actually work?

Kegel balls work by placing a weighted device inside the vagina, which encourages the pelvic floor muscles to contract involuntarily in order to hold it in place. The Smartballs Duo contains two inner weighted balls that shift as you move, creating a gentle stimulating motion that prompts those muscle contractions passively. Over weeks of consistent use, this repeated engagement builds pelvic floor strength and tone.

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

Start by washing your hands and cleaning the device, then apply a water-based lubricant generously to both the device and the vaginal opening. In a relaxed position, gently insert the first ball followed by the second, ensuring the retrieval cord remains outside the body at all times. If you feel any pain during insertion, stop immediately and consult your GP.

How long should I wear kegel balls each day for best results?

Beginners should start with just 15 to 30 minutes per day and gradually increase wear time as their pelvic floor muscles adapt and strengthen. The maximum recommended daily wear time is two hours — exceeding this can cause muscle fatigue rather than improvement. Consistency over several weeks matters far more than duration in any single session.

Are there any side effects of using the Fun Factory Smartballs Duo?

Most users tolerate the Smartballs Duo well, though some experience mild vaginal discomfort, a feeling of fullness, or temporary pelvic pressure during initial use — all of which typically settle as the muscles adapt. Less commonly, users may notice unusual discharge or persistent discomfort, which warrants removing the device and seeking advice from a GP. Pain during use is not normal and should always be investigated.

Who is the Fun Factory Smartballs Duo suitable for?

The Smartballs Duo is suitable for adults with a vagina who want to strengthen their pelvic floor, including those with mild stress urinary incontinence or those returning to pelvic floor training after childbirth (with medical clearance). It is not suitable for use during pregnancy, immediately postpartum, or following pelvic surgery without explicit guidance from a healthcare professional. If you have an IUD fitted, speak to your GP before use.

Can I use the Smartballs Duo after having a baby?

You should wait until at least six weeks after a vaginal delivery — or longer after a caesarean section — and receive clearance from your midwife or GP before using any internal pelvic floor device. Postpartum pelvic floor rehabilitation is important, but starting too soon with a device like this can cause harm to healing tissues. A women's health physiotherapist can advise on the right timing and approach for your individual recovery.

What lubricant should I use with the Fun Factory Smartballs Duo?

Always use a water-based lubricant with the Smartballs Duo — silicone-based lubricants can degrade the medical-grade silicone surface of the device over time, compromising its safety and hygiene. Apply lubricant generously to both the device and the vaginal opening before insertion for comfort. You can find compatible personal lubricants in our personal lubricants collection.

How do I clean and care for the Fun Factory Smartballs Duo?

Clean the device before and after every use with warm water and a mild, fragrance-free soap, or use a dedicated body-safe toy cleaner. Rinse thoroughly to remove all soap residue, then pat dry with a clean cloth before storing in the supplied bag. Do not boil or use harsh chemical cleaners, as these can damage the silicone.

What are the alternatives to the Fun Factory Smartballs Duo?

Alternatives include single kegel balls (better for absolute beginners), electronic pelvic floor stimulators, or a structured programme of active Kegel exercises guided by a physiotherapist. The Smartballs Duo sits in the middle ground — more resistance than a single ball, but without the complexity or cost of electronic devices. Your GP or women's health physiotherapist can help you choose the most appropriate option for your needs.

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

Most users begin to notice improvements in pelvic floor tone and bladder control within four to six weeks of consistent daily use, though this varies depending on baseline muscle strength and how regularly the device is used. The NHS notes that pelvic floor exercises generally require several months of commitment before significant improvements are felt. Patience and consistency are key — short daily sessions are more effective than occasional longer ones.

Is the Fun Factory Smartballs Duo body-safe?

Yes — the Smartballs Duo is made from medical-grade silicone, which is non-porous, hypoallergenic, latex-free, and phthalate-free, making it one of the safest materials available for internal use. The non-porous surface means bacteria cannot penetrate the material, provided the device is cleaned properly after each use. Always inspect the device before use and replace it if you notice any cracks, tears, or damage to the surface or retrieval cord.

Can I wear the Smartballs Duo during exercise?

Light daily activities such as walking, light housework, or gentle yoga are fine while wearing the Smartballs Duo. However, you should remove the device before vigorous exercise, running, or high-impact activities, as the increased intra-abdominal pressure during these activities can place excessive strain on the pelvic floor. If you're managing pelvic floor issues alongside general health concerns, our women's health collection has further resources worth exploring.

What is the latest research on kegel balls and pelvic floor training?

Research consistently supports pelvic floor muscle training as an effective intervention for stress urinary incontinence, with the NHS recommending it as a first-line treatment. Studies suggest that weighted vaginal devices can enhance the effectiveness of pelvic floor training by providing proprioceptive feedback, though supervised physiotherapy remains the gold standard for clinical conditions. If you have a diagnosed pelvic floor disorder, always work alongside a qualified women's health physiotherapist rather than relying solely on a device.

What should I do if I cannot remove the Fun Factory Smartballs Duo?

If you have difficulty removing the device, remain calm — it cannot travel beyond the vaginal canal. Relax your pelvic floor muscles completely, try bearing down gently as if having a bowel movement, and pull the retrieval cord slowly. If you are still unable to remove it after several attempts, seek assistance from your GP or attend an urgent care centre — do not attempt to use tools or force.

How Should You Use the Fun Factory Smartballs Duo?

Using the Smartballs Duo correctly ensures both comfort and effectiveness. Always clean the device with warm water and a mild, fragrance-free soap before and after every use, and inspect it for any signs of damage before insertion.

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

This is a physical training device rather than a medicine, so "dosage" refers to wear duration and frequency. Starting conservatively and building up gradually is the safest approach, particularly if you are new to pelvic floor devices.

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

The Smartballs Duo is designed for use during light daily activities, so the best time to wear it is during a period of gentle movement — a morning walk, light housework, or a leisurely stroll. Avoid wearing it first thing in the morning if you plan to exercise vigorously, and never wear it overnight or during sleep. Many users find incorporating it into a consistent daily routine — at the same time each day — helps build the habit and maximises results over time.

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

There is no fixed maximum duration for using the Smartballs Duo as part of an ongoing pelvic floor maintenance routine, provided you continue to use it comfortably and without any adverse effects. Most users see meaningful improvements within four to twelve weeks of consistent daily use. After that, many choose to continue using it a few times per week to maintain pelvic floor tone. If at any point you experience discomfort, pain, or unusual symptoms, stop use and consult your GP or a women's health physiotherapist before continuing.

Do not exceed the recommended wear time of two hours per session. If in doubt, speak to your pharmacist.

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, side effects are generally mild and related to the body adjusting to internal use. Most people tolerate it well from the outset, particularly when they start with short wear periods and build up gradually.

Mild vaginal discomfort or a sensation of fullness during initial use
Temporary pelvic pressure, particularly when standing or walking
Mild pelvic floor muscle fatigue after extended wear
A slight awareness of the device during movement — this is normal and typically fades with regular use

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

Less commonly, some users experience responses that may indicate the device is not suitable for them at this time, or that it is being used incorrectly. Pay attention to any changes that feel unusual or persist beyond a few days of use.

Unusual vaginal discharge or odour following use — this may suggest irritation or a developing infection
Persistent discomfort or aching in the pelvic region after removal
Difficulty removing the device — this is rare but can cause anxiety; remain calm and follow the removal guidance
Mild skin irritation around the vaginal opening, particularly if lubricant is not used

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

Serious adverse effects are uncommon when the device is used as directed. However, certain symptoms should prompt you to stop use immediately and seek medical attention without delay.

Pain during or after use — pain is never a normal response and should always be investigated
Vaginal bleeding not associated with your menstrual cycle
Signs of infection: increased discharge, strong odour, fever, or pelvic pain
Inability to remove the device after multiple attempts — seek urgent medical assistance

What Should You Do If You Experience Side Effects?

If you notice any mild discomfort during initial use, try reducing your wear time and ensuring you are using sufficient water-based lubricant. Most early discomfort resolves within the first week as your body adjusts. For anything beyond mild, transient discomfort — particularly pain, bleeding, or signs of infection — remove the device immediately and contact your GP or call NHS 111 for guidance. Do not continue using the device until you have received medical advice.

Can the Fun Factory Smartballs Duo Interact With Other Products?

The Smartballs Duo has no pharmacological interactions with medicines. However, there are important product compatibility considerations. Never use silicone-based lubricants with this device, as they chemically degrade the silicone surface, making it porous and unsafe for internal use. Avoid using the device alongside other internal devices simultaneously. If you are using any vaginal medications — such as pessaries or antifungal creams — do not use the Smartballs Duo at the same time, and seek advice from your pharmacist about timing.

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