COG rubbery c-rings are a 2-piece pack of 1 small + 1 large COG c-ring in one pack. COG is designed for guys that like a heftier super-stretchy c-ring, the set allows the user to wear the size that gives the right grip for play, or use one as a c-ring and the other as a thick ball-ring. The knurled surface texture looks cool and feels amazing…at hünkyjunk we love the details! Our plus+silicone™ TPR/silicone blend: silicone for a smooth and warm feel, TPR for amazing stretch and strength. Phthalate free.