Sono No.37 Stretchy Thick Penis Extension By Shots Toys

Many men want to enhance size and performance but worry about comfort or fit. Sono No.37 Stretchy Thick Penis Extension Translucent solves this with a soft, flexible TPE sleeve that adds length and girth while staying secure and body-safe.

What it is

Sono No.37 Stretchy Thick Penis Extension Translucent is a precision-engineered sleeve that delivers immediate size enhancement without compromise. Made from soft, body-safe TPE, it stretches comfortably over the penis and adds 2.5 centimetres of length plus 1 centimetre of girth. A secure ball strap prevents slippage during use, while the translucent material gives a natural appearance and allows for visibility. The design accommodates penis sizes from 9 to 19 centimetres, making it accessible for most users.

This extension prioritises comfort and reliability over complexity. The soft TPE material feels natural against skin and remains flexible during movement. Unlike rigid alternatives, it molds to your body while maintaining structural integrity. See the full BDSM Australia range of Penis Sleeves to compare other extension options.

Key features

• Secure ball strap: Prevents unwanted slippage during intercourse, keeping the extension stable and positioned correctly throughout use.
• Soft TPE construction: Body-safe, phthalate-free material that feels natural and remains hypoallergenic for sensitive skin.
• Translucent design: Clear material allows visibility during use and provides a realistic aesthetic appearance.
• Precise dimensions: 152mm total length with 117mm dedicated sleeve fits multiple penis sizes comfortably and securely.
• Waterproof and easy care: Simple cleaning with warm water and mild soap; dries quickly for convenient storage.

Specifications

• Overall dimensions: 152mm length × 35mm diameter × 21mm width for optimal comfort and fit.
• Penis accommodation: Stretches to fit penis sizes from 9 to 19 centimetres comfortably.
• Material: 100% soft TPE—hypoallergenic, phthalate-free, and body-safe for worry-free use.
• Enhancement: Adds 2.5cm length and 1cm girth during intercourse.
• Waterproof: Fully waterproof construction allows use in any environment.
• Box contents: One Sono No.37 extension with integrated ball strap; no batteries or additional equipment required.
• Available colours: Black, grey, and transparent options.

How to use a pumps, extenders and sleeve

Begin by applying water-based lubricant to the interior of the sleeve for smooth insertion. Stretch the opening gently and position it over your penis, then secure the ball strap snugly around the base to prevent movement. Ensure the sleeve sits comfortably without pinching or excessive tightness. Test the fit before sexual activity to confirm stability and comfort. Adjust the strap tension as needed to find your ideal balance between security and ease.

During use, move naturally and experiment with different angles to discover what feels best. The additional length and girth will change sensations for both partners, so communication matters. Start slowly and increase intensity gradually as you adapt to the extension. Clean thoroughly with warm water and mild soap immediately after use, then air dry completely before storage. Explore Vibrating Penis Sleeves if you want to add vibration to your extension experience.

Care and storage

Wash the sleeve with warm water and mild antibacterial soap immediately after use to remove all lubricant and body fluids. Pat dry with a soft cloth and allow it to air dry completely in a cool location before storing. Keep it in a clean, dry place away from direct sunlight and extreme heat, which can degrade the TPE material. Store separately from other toys to prevent material contact that may cause staining or degradation.

Learn more

Penis extensions are a practical, non-invasive way to explore size enhancement without surgery or commitment. Many users report increased confidence and enhanced pleasure during partnered sex. Read more about the topic in our guide Is It Wrong To Use Penis Extenders, which addresses common questions and concerns.

Mistress Athena's training notes

By Mistress Athena — professional dominant and kink educator, sole instructor behind BDSM Australia's library of training videos. Read her full bio →

This extension reveals submissive psychology in ways few tools can. My subjects experience heightened vulnerability when I introduce it—the added girth forces them to confront physical and mental limits simultaneously. Watching their breathing shift, observing how their bodies tense and release, tells me exactly where their thresholds lie. The translucent material becomes my window into their surrender.

Control intensifies dramatically with this sleeve. I vary pressure and depth deliberately, noting which sensations trigger compliance versus resistance. Some submissives respond to the psychological weight of the extension itself—the knowledge that they're accommodating more. Others focus entirely on physical sensation. My role is to read those responses and exploit them strategically.

Training protocols benefit from this tool's reliability. The secure ball strap means I can maintain consistent positioning without distraction, allowing me to focus entirely on my subject's reactions and my own technique. Repetition across multiple sessions builds both physical adaptation and psychological conditioning. Each use reinforces the power dynamic I've established.

See this and similar tools in action across my 300+ training videos on the BDSM Australia channel.

How it compares

Why you'll reach for it

Pick up Sono No.37 Stretchy Thick Penis Extension Translucent when you want reliable size enhancement without fuss or discomfort. Its soft TPE material, secure ball strap, and translucent design make it practical for regular use at BDSM Australia. Whether you're exploring enhancement for the first time or adding to an existing collection, this sleeve delivers straightforward performance and real results. Order yours today. Trusted by Customers Across Australia.