Astro Stainless Steel Anal PlugSubtle Stainless Steel Butt Plug approximate measurementsSmall Overall length: 87mm Insertable length: 75mmPlug width: 30mmMediumOverall length: 115mm Insertable length: 105mmPlug width: 30mm 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.