Stainless Steel Ribbed Penis Plug with detachable glans ring. Many men love the feel of an item being inserted into urethra and this will certainly give you an added sensation with the 5 smooth pleasure grooves that will stimulate your inner urethra. Once the plug is inserted into the penis the curved bar fits discreetly under the penis while the glans ring fits under the head of the penis and holds securely in place. Length 80mm, Thickness 8mm at widest point. Available in Ring Sizes; 25mm, 28mm, 30mm or 32mm.