Invasion Silicone Urethral Sound Training Set

Made of non-porous, hygienic premium silicone, these urethral sounds are easy to sterilize and body safe for an all new sounding experience. The flexible rods bend with the body, sliding down the shaft for an exquisitely unique sensation. Each sound is double-sided, with a different sized girth on each end. The graduated sizes allow you to work your way up until you can accommodate the largest rod.