Fun Factory B BALLS UNO combines weighted internal stimulation with medical-grade silicone construction. This 7.3 cm tapered plug features an internal rolling ball that moves with your body, delivering subtle sensation during activity. IPX7 waterproof and discreet for pelvic floor exploration.
Key Features:
Internal weighted ball creates sensation through natural body movement
Premium tapered silicone construction safe for internal use
Measures 7.3 cm long with 3.4 cm diameter weighted core
Tapered tip design slides in smoothly for comfortable insertion
IPX7 waterproof rating allows use in shower or bath
Couldn't load pickup availability
Fun Factory B BALLS UNO is a weighted anal plug designed for pelvic floor exploration and internal sensation. Measuring 7.3 cm long with a 3.4 cm diameter, it features an internal weighted ball that shifts with movement. The tapered silicone construction and IPX7 waterproof rating make it suitable for beginners exploring weighted internal stimulation with discreet, hands-free wear.
The B BALLS UNO works through passive movement—as you shift position or walk, the internal weighted ball rolls naturally, creating subtle internal stimulation without requiring active thrusting or vibration. The tapered tip slides in smoothly, while the weighted core delivers constant, gentle pressure that many find more grounding than vibration-based stimulation. This motion-responsive design means sensation intensifies with activity and quiets during stillness, offering a uniquely responsive experience.
Fun Factory crafted this plug from premium medical-grade silicone, a non-porous material that feels smooth and maintains its shape through years of use. The flat base prevents accidental internal displacement while remaining completely discreet under clothing. Those interested in exploring pelvic floor engagement can discover our butt plug sets for expanded options.
| Length | 7.3 cm |
| Diameter | 3.4 cm |
| Material | Medical-grade silicone |
| Internal Feature | Weighted ball |
| Waterproof Rating | IPX7 (fully submersible) |
| Warranty | 25 years |
Pairing the B BALLS UNO with tapered penis plugs during partnered play creates layered sensation that many find more intense than solo use. Some people enjoy wearing it during everyday activities—shopping, working, or dating—where the subtle internal stimulation from natural movement remains completely concealed. Extended wear sessions (1-2 hours) can intensify pelvic floor awareness and deepen sensation over time.
After each use, rinse thoroughly under warm running water with mild soap, paying special attention to the base where silicone meets air. Pat dry with a soft cloth and allow complete air drying before storage. Store in a cool, dry place away from direct sunlight and extreme heat, which can degrade silicone over time. The IPX7 waterproof rating means you can clean it under running water or submerge it completely without concern.
Medical-grade silicone construction ensures the B BALLS UNO remains body-safe and non-porous, resisting bacterial growth and maintaining its integrity through decades of use. The material conducts temperature naturally, warming to body heat within moments of insertion for comfortable wear. Silicone's flexibility allows the plug to adapt to individual anatomy while the weighted ball moves freely inside without sharp edges or pressure points that could cause discomfort.
This plug suits beginners exploring anal pleasure for the first time, as the tapered design and passive stimulation approach feel less intimidating than larger or more aggressive options. Those curious about pelvic floor sensation without vibration or active control find the weighted-ball design refreshingly responsive. People seeking discreet wear during everyday activities appreciate how the flat base and small diameter remain completely hidden under clothing while delivering subtle, constant internal awareness.
For those accustomed to vibration-based stimulation, discovering that internal sensation can come from passive movement rather than active buzzing shifts expectations about what anal play can feel like. The weighted ball creates a grounding, present-moment awareness—as you move, it moves, making your body's natural motion the source of pleasure rather than external technology. For beginners hesitant about complexity or noise, this approach removes those barriers entirely. The tapered design means you're not committing to a large plug; you're starting with something your body can accommodate immediately. For people interested in extended wear or public play, the complete discretion and lack of noise or vibration means exploring without anxiety. Fun Factory's 25-year warranty reflects confidence in construction quality that outlasts trend cycles—this is an investment in consistent, reliable sensation rather than disposable experimentation.
Our independent testers evaluated insertion ease, internal ball responsiveness, base comfort during extended wear, and material durability across multiple use cycles. The tapered tip allowed smooth insertion even for first-time users, while the weighted ball's movement became noticeably more pronounced during walking or position changes compared to static sitting.
Testers reported the flat base remained completely comfortable during 2-hour wear sessions, with no pressure points or shifting. The silicone maintained its original firmness after repeated cleaning and storage cycles. Individual results may vary based on anatomy, sensitivity, and usage patterns.
| Product | Unique Advantage | Key Difference | Choose This If You Want |
|---|---|---|---|
| Fun Factory B BALLS UNO | Internal weighted ball + tapered entry point for beginners | Passive motion-responsive stimulation without vibration or manual control | Responsive internal sensation through natural body movement |
| Large Anal Play Plugs | Fuller internal sensation with greater depth and width | Requires more advanced comfort with insertion and larger diameter | Deeper, more intense internal pressure and filling sensation |
| Medium Butt Plugs | Balanced size between beginner and advanced exploration | Fixed shape without internal movement or weighted components | Stationary internal presence without motion-based stimulation |
| Vibrating Anal Plugs | Active vibration patterns for direct internal stimulation | Requires charging and offers multiple vibration modes | Hands-free vibration combined with internal wear and control options |
Explore our pink butt plugs collection to find additional options suited to your preferences and comfort level.
Understanding pelvic floor awareness helps you appreciate how weighted internal sensation differs from vibration-based stimulation—the constant gentle pressure trains awareness rather than overwhelming sensation. For those new to anal exploration, learning proper breathing and relaxation techniques transforms the insertion experience from uncomfortable to genuinely pleasurable. Our guide to sensation play techniques offers foundational approaches for discovering what responsive internal wear can offer your body.
Ready to explore weighted internal sensation that responds to your body's natural movement? Fun Factory B BALLS UNO is available at Adultsmart with discreet Australia-wide shipping in plain, unmarked packaging.
Adultsmart.au ships with Australia Post. We ship from Sydney.
All in-stock orders placed before 12pm AEST (Sydney Time) on business days are generally processed on the same day. Packages are usually received 1-6 business days after shipping, but may subject to any postage carrier related delays beyond our control.
Free standard shipping on orders shipped within Australia above $200. For orders below $200 standard shipping within Australia is $12.95 and will be added at checkout.
Orders addressed to P.O box, G.P.O box or Parcel Collect will be handled by Australia Post. Extra time should be allocated for these orders.
Shipping Transit Times (Including Free Shipping)
Shipping time refers to the estimated time that it will take to deliver your order after it’s ready to ship (Please note this does not include time to process your order). Shipping time does not commence after your order is put through but begins the moment your order has been processed and is ready to dispatch via the our freight carrier..
All in stock orders are generally processed on the same day the order was placed on business days for orders received before 12pm. Generally, orders are processed and shipped the same day or next business day.
Orders are typically received 1-6 business days after shipping. For larger packages please allow an extra 1-2 business days for delivery.
If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from the nearest depot location.
All orders are generally processed on the same day the order was placed on business days before 12pm.
Generally, orders are processed and shipped the same day or next Business day.
Packages below 2kg are usually received 3-6 business days after shipping. For larger packages please allow an extra 1-2 business days for delivery.
If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from the local Australia Post depot.
The price for international shipping is AU$12.95 for orders equal to or below 0.399kg (399grams), and AU$22.95 for orders with a total weight equal to or above 0.4kg (400 grams).
All in-stock orders placed before 12pm AEST (Sydney Time) on business days are generally processed on the same day. Packages are usually received 6-30 business days after shipping.
If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from your nearest delivery depot.
Please note in regards to all orders
– These expected delivery dates/times are based on carrier shipping practices, your destination, and the items in your order.
– Expected delivery dates are estimates. Orders can be delayed due to fraud verification or the time of the order being placed. Items that are not regularly stocked cannot be held to the expected delivery dates.
– Orders may be delivered in separate shipments.
– The order cut off times are based on normal Business Hours and exclude weekends and Holidays: Monday – Friday 12 pm
– When your order ships you will receive an email from us with a link to track your order. If you receive your tracking number before 6 pm (AEST) it may not be updated on the Carrier’s website until that evening.
Due to large amounts of online credit card fraud, all orders are subject to approval by our payment verification department. We will notify you by phone or email should your order be delayed.
We have a 14 day return policy, which means you have 14 days after receiving your item to request a refund for any defective products.
Returns and exchanges are only available for faulty items, goods not as described, or in some instances, for incorrect sizing.
Due to health and safety regulations, Adultsmart.com.au cannot resell any returned or exchanged products.
This policy is in place to prioritise your well-being and ensure that you receive the highest standard of hygiene and quality in all products.
To be eligible for a refund, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging.
You’ll also need the receipt or proof of purchase. We do not issue refunds for change of mind or incorrect choice.
Under Australian Consumer Law, we are not obliged to accept returns for “incorrect choice” or “change of mind” so please choose your products carefully.
Any freight and insurance costs to return the item to us are at your expense. This includes the liability for any lost freight – send via registered post.
If your return request is accepted, we will provide you with all instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
We do not accept returns for any products that have change of mind, damaged products, or for products that have been used or do not have their original packaging.
Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 7 business days.
Please remember it can take some time for your bank or credit card company to process and post the refund too.