COG rubbery c-rings are a 2-piece pack of 1 small + 1 large COG c-ring in one pack. Theyre made from our PLUS+silicone blend so theyre velvet soft but strong for grip. 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 amazingat hnkyjunk we love the details! Hnkyjunk PLUS+silicone TPR/silicone blend: silicone for a smooth and warm feel, TPR for amazing stretch and strength. Phthalate free. LUBE SAFE: Water-based lube, hybrid or silicone lube, oil-base lubes not recommended. CARE: Wash after use in warm soapy water, air dry. Store toys separately :we recommend storing in breathable cloth pouches or for larger toys, in cotton socks.