Waterproof Bottom Line Rubber Butt Plug Model 4 offers 4 inches of insertable length crafted from phthalate-free soft rubber with professional suction cup base for hands-free anal exploration and graduated comfort during extended wear.
Key Features:
Tapered design allows gradual accommodation and comfortable insertion
Phthalate-free soft rubber construction safe for body contact
Four inches insertable length for reliable anal exploration
Professional suction cup base enables hands-free positioning capability
Waterproof functionality allows use in showers and baths
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Bottom Line Rubber Butt Plug Model 4 is a flesh-toned anal plug made from phthalate-free soft rubber. Measuring 4 inches in insertable length with a professional suction cup base, it delivers waterproof functionality and graduated comfort for extended wear. The hygienic construction suits people seeking reliable anal exploration with hands-free positioning capability.
The Bottom Line Rubber Butt Plug Model 4 operates through graduated insertion and suction cup anchoring. The soft rubber composition flexes gently as it enters, while the tapered design allows gradual accommodation. Once positioned, the professional-strength suction cup base adheres to smooth surfaces, enabling hands-free wear or stable placement during solo or partnered exploration.
Premium-grade phthalate-free rubber forms the entire structure, balancing flexibility with structural integrity that maintains shape through repeated use. The flesh tone provides natural aesthetic appeal while the smooth surface supports easy cleaning and hygiene maintenance. Those seeking additional options can explore our large anal play plugs collection at Adultsmart.
| Insertable Length | 4 inches |
| Material | Phthalate-free soft rubber |
| Base Type | Professional suction cup |
| Color | Flesh tone |
| Waterproof | Yes, fully waterproof |
| Includes | Bottom Line Rubber Butt Plug Model 4 |
Pairing the Bottom Line Model 4 with heart-shaped butt plugs allows exploration of different sensations and shapes during extended sessions. The suction cup base enables hands-free wear while you focus on other stimulation, creating layered pleasure that many find more satisfying than single-point sensation. Combining graduated insertion with longer wear periods helps your body develop comfort with deeper anal exploration over time.
After each use, clean the entire surface with warm water and mild soap, paying particular attention to the suction cup base where moisture can accumulate. Dry completely with a soft cloth before storage to prevent material degradation. Store in a cool, dry location away from direct sunlight, ideally in a breathable pouch. Avoid contact with silicone-based lubricants, as these can compromise the rubber material over time. Inspect the suction cup regularly for any cracks or deterioration that might affect sealing capability.
Bottom Line Rubber Butt Plug Model 4 is manufactured from phthalate-free soft rubber, ensuring body-safe composition without harmful chemical additives. The non-porous material resists bacterial colonization and maintains its integrity through repeated cleaning and use. The professional-grade construction supports extended wear while the waterproof design enables thorough sanitation, making it suitable for people prioritizing both safety and durability in anal products.
This plug suits people exploring anal play who prefer graduated entry and hands-free positioning capability. The soft rubber composition appeals to those seeking comfort during extended wear without rigid materials. Ideal for solo exploration or partnered activities, it works well for beginners seeking reliable quality and for experienced users wanting versatile placement options through suction cup anchoring.
For people uncertain whether rigid metal or glass plugs suit their bodies, soft rubber provides an accessible entry point that feels forgiving during initial exploration. The graduated taper lets your body adjust gradually rather than forcing accommodation of a fixed width, which many find more comfortable than plugs with uniform diameters. The professional suction cup base transforms the experience from requiring constant hand support to enabling hands-free wear, shifting anal play from an active effort into a sensation you can hold while exploring other stimulation simultaneously. For those who have felt intimidated by anal products that seemed either too intense or too complicated, discovering that soft rubber combined with thoughtful design makes exploration manageable rather than overwhelming changes what feels possible in intimate discovery.
Our independent testers evaluated the Bottom Line Model 4 for material flexibility, suction cup stability, waterproof integrity, and comfort during extended wear. The soft rubber provided consistent give without losing shape, while the suction cup base maintained reliable adhesion on smooth surfaces throughout testing sessions. Individual results may vary based on anatomy, sensitivity, and usage.
| Product | Unique Advantage | Key Difference | Choose This If You Want |
|---|---|---|---|
| Bottom Line Rubber Butt Plug Model 4 | Soft rubber with professional suction cup base for hands-free wear | Graduated taper combined with phthalate-free composition | Comfortable extended wear with positioning flexibility |
| Metal butt plugs | Firm, non-flexible construction with temperature conductivity | Rigid material that maintains exact shape without give | Firm pressure and temperature play capability |
| Glass butt plugs | Smooth, non-porous surface with visual clarity and weight | Rigid material without temperature conductivity of metal | Aesthetic appeal combined with firm, stable pressure |
| Penis plugs | Urethral stimulation with internal sensation focus | Designed for penile insertion rather than anal use | Exploring internal penile sensation and urethral play |
| Hollow penis plugs | Urethral insertion with fluid passage capability | Hollow design enables continued urination during wear | Extended penile plug wear with practical functionality |
Discover what soft rubber anal exploration offers by browsing our metal anal trainer plugs for alternative materials and graduated sizing options.
Understanding graduated insertion techniques helps your body adjust comfortably to anal play without rushing the process. Learning proper breathing and relaxation methods transforms anal exploration from something that feels forced into a sensation that develops naturally. Our guide to butt plug techniques and safety offers practical approaches for comfortable exploration.
Ready to try soft rubber anal exploration with hands-free positioning, Bottom Line Rubber Butt Plug Model 4 is available at Adultsmart. All orders ship discreetly across Australia in unmarked packaging with confidential tracking and delivery.
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.