This set of hollow urethral diators is great for playing with the urethra. The stainless steel sounds go easily and smoothly into the urethra and the stretching will give you great pleasure. Discover the intense pleasures of urethra play! The urethra has the highest concentration of nerve endings in your entire body. This 8 piece Rosebud dilator set, is medical grade with sizes 6, 7, 8, 9, 10, 11, 12 mm. The beautiful dilators are made of 100% stainless surgical steel and packaged in a convenient, beautiful black storage box. They are approximately 23 cm in length. Each is hollow and has a bulbous tip for the most intense sensation.