Get the support you need for the ultimate thrilling orgasm. This ring is designed to get you hard and keep you there! A perfect fit is all yours with this stretchy and comfortable delight. Non-tarnishing and nickel free, this product is safe and worry free. Universal clasps make this a versatile bedroom accessory. COLT by Cal Exotics. Materials Silicone, steel, Iron. Measurements 1.5 inches Silicone ring diameter. 1.75 inches Stainless Steel Ring diameter.