Get ready to discover a whole world of pleasure you never knew existed with this ribbed silicone, vibrating urethral sound. Designed to stimulate the sensitive nerve endings inside your urethra, it boasts 7 vibrating modes for intense internal pleasure. Blending ribbed and smooth surfaces for mixed sensation, the first 2. 25 inches of insertable length features a set of 8 balls, each 8mm in diameter. Insert them slowly, allowing them to pop into your urethra one at a time to feel each bump as it slips in. For deeper penetration continue inserting until the full 4. 5 inches of dilator is inside you. The vibrations awaken the super-sensitive nerve endings inside your penis and create mind blowing stimulation that feels unlike anything else. In some men, this dilator may even be long enough for direct prostate massage. Always use with a generous squeeze of sterile water-based lube and insert slowly for maximum pleasure.