Made from premium, phthalate-free, and non-porous silicone, these urethral sounds offer a body-safe, sterilizable option for a new and thrilling sounding experience. The flexible rods bend with your body, sliding smoothly down your shaft to deliver the unique sensation you desire. Each sound is double-sided, with different girth measurements on each end, allowing you to gradually work your way up in size. The graduated design helps you stretch your urethra comfortably, accommodating the largest rod as you progress. Each sound measures 8 inches in length, with sizes ranging from .19 inches to .38 inches in diameter, giving you a variety of sensations to explore.