Master Series Invasion Silicone Urethral Sound Trainer Set

Curious about urethral sounding but not sure where to start? The Master Series Invasion Silicone Urethral Sound Trainer Set gives you three double-sided rods in graduated sizes, so you can ease into the experience at your own pace and work your way up comfortably.

Each sound is made from silicone – smooth, flexible, and non-porous, making it easy to sterilise between uses. The rods bend with the body rather than forcing a rigid path, which is a big part of what makes this set so approachable for beginners and experienced players alike. The set is phthalate-free and body safe, so you can focus on the sensation rather than second-guessing the materials.

The double-sided design is a smart touch: flip any rod around and you get a different girth on the other end, effectively giving you six size options across three rods. Start small, get comfortable, then gradually move up through the sizes at whatever pace suits you.

Six sizes, three rods, one set

All three sounds share the same 8 inches in length. The small rod measures .19 inches on one side and .23 inches on the other. The medium steps up to .27 inches and .32 inches in width. The large rod offers .34 inches and .38 inches in width – giving you a clear progression from the narrowest starting point right through to a satisfying stretch. The blue silicone colour also makes it easy to keep track of which rod is which.

FAQ

What is the set made from?

The sounds are made from silicone. The set is phthalate-free and body safe, and the non-porous surface makes sterilisation straightforward.

What are the dimensions?

Each sound is 8 inches in length. The small rod is .19 inches (side 1) and .23 inches (side 2) in diameter. The medium is .27 inches and .32 inches in width. The large is .34 inches and .38 inches in width.

Are these sounds flexible or rigid?

They are flexible – the silicone rods bend with the body rather than staying completely rigid, which is part of what makes them well-suited to beginners exploring sounding for the first time.

Ordered from adulttoystore.com.au, this set ships in discreet packaging to anywhere in Australia.

Everything you need to start sounding

• Set of 3 double-sided silicone urethral sounds
• Material: silicone – non-porous and easy to sterilise
• Phthalate-free and body safe
• Flexible rods that bend with the body
• Each sound is 8 inches in length
• Small: .19 inches / .23 inches diameter; Medium: .27 inches / .32 inches width; Large: .34 inches / .38 inches width
• Colour: Blue
• Graduated sizes for a progressive sounding experience