Perform like a porn star with our pure premium silicone cock rings from Performance, a brand you can trust. Stay harder and longer with these male enhancement rings that are a blend of taut and stretchy. It can be stretched up to twice its original diameter. With 3 rings to use, wear 1 to increase your sexual stamina or wear multiple cock rings around your cock. Or share them with your partner. Material Silicone. Color Black. Dimensions 1.25 inches.