Hells Couture Cold Steel like VENUS Penis Ring with GlandsThe Cold Steel Venus Penis Plug is made of medical grade stainless steel and has a tapered tip to aid insertion. approximate measurements- Plug is the same length and width across all sizes -Overall length: 60mmInsertion length: 41mmPlug width (slimmest point): 5mmPlug width (widest point): 8mmSmall Internal ring diameter: 25 mmMediumInternal ring diameter: 28 mmLarge Internal ring diameter: 30 mmExtra Large Internal ring diameter: 32 mm