NUTT is a thick. fat but stretchy dual purpose Cock Ring and/or Ball Stretcher. Made of Ox Balls` 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: 1/2.5cm Height: 1 1/4/3cm Outside Diameter: 2/5cm