This is a 100% silicone, hypoallergenic, no smell, no taste, one size fits most cock gag. Remove the Velcro adjustable leather strap and the 2.5" x 1.5" cock is bleachable, dishwasher safe and can even be boiled! Always use water-based lubricant with silicone. Be smart and sexy with this long lasting Silicone Cock Gag! This one is definitely a keeper!