Stretchy and comfortable Silicone erection enhancer. Soft and smooth, thick and durable. Fully adjustable, three-snap design. Heavy-duty, nickel-free hardware. Added scrotum strap for support and stamina. Materials: Silicone (enhancer) Nickel-Free Iron (rivets). 8.5″ x .75″(scrotum ring). 1.25″ (inner ring diameter).