Product Number: SIN096 This elegant black penis plug from the Sinner Gear collection is 100% made of silicone. This makes the toy soft, flexible and comfortable to use. Apply some waterbased lubricant to the plug and slowly insert it into your urethra. The shaft is provided with small round beads that give you extra stimulation during insertion and removal. Because of the hollow shaft, you don't even have to remove the plug when you reach a climax.