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. Testicular separation strap for enhanced stimulation. Materials Silicone enhancer, Nickel Free Iron rivets. Measurements 1.25 inches inner ring diameter, 8.5 inches by 1 inch. From CalExotics.