From Doc Johnson, The Lifesaver has the classic cock ring lifebuoy shape users love, made from silicone with an ultra-smooth and soft finish. It's durable, unscented, and can stretch while retaining its original shape. Rock Solid cock rings enhance size and thickness for longer, harder erections, and are completely body-safe.Approximate Product Dimensions: C-Ring, Width/Diameter: 2 in. (5.1 cm), Unstretched Inner Diameter: 0.88 in. (22 mm), Depth: 0.5 in. (13 mm)