Nutt is a thick, fat but stretchy dual purpose cock ring and or ball stretcher. Made of Oxballs legendary Skinflex silicone, which feels wonderfully warm but never pinches. Features: Pure Platinum Cure Silicone. Lube safe: water base, oil base, water/silicone hybrid, silicone lubes. Cleaning detergent and hot water, dishwasher, or soak in bleach water solution. Size inside diameter 1 inch, height 1.25 inches, outside diameter 2 inches.