Fantasy C-Ringz Silicone Designer Stamina Set Black. Erection support amazing vibrations and explosive orgasms! Prolong the fun and make pleasure last with this beginner friendly Silicone Designer Stamina Set! With three super stretchy silicone rings to choose from this trio is the perfect assortment to help you achieve your maximum potential! Made from phthalate free body safe Elite Silicone the three performance rings range from 1 inch to 1.375 inches. Find the perfect size for you and put it around the base of your shaft to gently restrict blood flow and help you achieve the biggest and most intense erections ever imagined! Try the rings in different combinations to find the most explosive results! Use all three rings at the same time for the ultimate stamina test! Kit contains: small cock ring inner diameter 1 inch outer diameter 1.68 inches. Medium cock ring inner diameter 1.1875 inches outer diameter 1.89 inches. Large cock ring inner diameter 1.375 inches outer diameter 2.14 inches. Features stretchy. Material Silicone.