Ladygirl Vibrating Urethral SoundInsertable urethral wand with sex ball attached made from medical steel. approximate measurements Small: Overall length: 160mm Insertable length: 155mm Plug width: 8mm Ball width: 10mmLarge: Overall length: 160mmInsertable length: 155mmPlug width: 8mmBall width: 10mmThis 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.