Maximus Vibrating Uretheral SoundVibrating Steel Short Vibe is an insertable cock vibrator or urethral sound for the special stimulation of the male cock made of premium medical steel. Requires 1 x AAA battery (not included) approximate measurementsOverall length: 121mmInsertable length: 40mmPlug width: 8mm 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.