Yoku penis PlugStainless Steel, a beautifully jeweled penis plug based on the Triple Rider with a Jewel embedded in the base. approximate measurementsOverall length: 83mmInsertable length: 75mmPlug width at slimmest point: 6mmPlug width at widest point: 8mmDiamond Ruby Rose Quartz Aquamarine Onyx 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.