MOTHERLESS DOMINATOR Urethral Sound Attention: as is the case with all sounding play it is important to observe a good measure of hygiene. Use a Toycleaner to sterilise the sound. Wash your hands and dick thoroughly before play. approximate measurementsOverall length: 178mmInsertable length: 136mmPlug width at slimmest point: 8mmPlug width at widest point: 10mm This product is certified 100% Non-Magnate and medical-grade steel. Beware of cheaper products that are not solid surgical steel but chromed steel or poor quality surgical steel that contains Magnate. Magnate is the ingredient that makes steel rust. We will only include this endorsement on our 100% surgical steel products.