he Performance Silicone Go Pro Cock Ring is a soft, stretchy ring crafted for maximum comfort. The flat design fits around your shaft for no slip performance. The Go Pro's body safe, hypoallergenic silicone features a satin smooth and a multi-colored design. It is easy to clean: just wash with soap and water and let air dry. Material Silicone. 1.5 inner diameter inches, 1.75 outer diameter inches, width .5 inch.