Stainless Steel Sculls Hand Ribbed Urethral SoundExperience the intensity of the Stainless Steel Sculls Hand Ribbed Urethral Sound. With a smooth, tapered tip for easier insertions, the real fun begins once you reach the ribs. Tightly packed together for unrelenting stimulation, this defined texture delivers out of this world pleasure. Made from stainless steel for a durable build, give your urethral sound a generous coating of lubricant for more comfortable play.