Rapture Novelties Three Joint Urethral Plug. Three joint urethral stretching plug 5.33 inches long. Made of solid stainless steel. The tube is hollow and the bottom of the bead can be removed for inserted urination. Features 3 widening steps starting with 0.2 inch (0.6cm), 0.31 inch and 0.39 inch. Stainless steel urethral plug. 3 increasing stepped widths. 5.33 inches long. Hollowed tube. For urethral and sounding play. Details: Weight 7 ounces. Color Stainless Steel. New images added March 12, 2014.