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'cm (inner ring diameter). 8.5' x 1'. From CalEx.