Master Series Invasion Silicone Urethral Sound Set

If you're into sounding (or urethral penetration, if you prefer) you'll already know that this practice isn't something anyone should go into without lots of prior research, time, patience and a great set of high quality tools. We've got the tools, in the form of the Master Series Invasion Silicone Urethral Sound Set, but please, please do your research if you're a first timer!

Sounding is an extreme form of play that involves inserting a rod or plug up through the penis via the urethral canal. For some, it provides a completely unique sensation and lots of pleasure, since the head of the penis and urethral canal is jam-packed with nerve endings. Sounding is also used as a way to directly stimulate the prostate, while some penis-owners get off on the extreme nature of sounding. In either case, it's not something to be done on a whim, so if you're interested, again, please do your research!

In body safe silicone, the three included silicone sounds are lightweight and nice and flexible. They're identically shaped, but vary in size, offering lots of options in terms of width and penetration depth (ie. stretching/stimulating potential). Take a good look before getting started - and if you're a beginner, definitely go for the thinnest.

Always follow a meticulous cleansing routine before and after using one of these (or any) urethral penetration deice. The Invasion Silicone Urethral Sound Set's hypoallergenic silicone material can be very thoroughly cleaned - a feature you definitely want in a urethral device. Boil them or bleach them for reliable sterilization. Always use the highest quality lube with any tool that'll be entering our or your partner's urethra - the best option is a sterile surgical or medical grade water based formula.

Approximate sizing 

• Small - 8"/20.3cm long, .19"/5.05mm wide at thin side, .23"/5.95mm in largest diameter
• Medium - 8.25"/20.95cm long, 6.93mm/.27" wide at thin side, 8.2mm/.32" at thick side
• Large - 8"/20cm long, .35"/8.95mm wide at thin side, .39"/9.9mm at thick side