In body-safe silicone, the 2 Ouch! Beginners Silicone sounds are lightweight and nice and flexible. One is longer and beaded, and the other is smooth and gradually tapered, 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 devices. The Ouch! Beginners Silicone Urethral Sounding Set's hypoallergenic silicone material can be very thoroughly cleaned - something 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 lubricante.
Approximate sizing
- Beaded - 6.10"/15.5cm long, 5.70"/14.5cm insertable, .216"/.55cm in largest diameter
- Smooth - 3.937"/10cm long, 3.74"/9.5cm insertable, .314"/.8cm in diameter