DUO rings are a hnkyjunk original--nobody's done this before! We made a chain-link style set of interlocked rings designed to wrap around your cock/balls, for "hunkier junk"! These super-rubbery PLUS+silicone blend rings are smooth and soft when used as a double c-ring without being too tight. We made them feel right! Or, flip one ring down to grip your balls--it's all connected so any movement transmits from the base of your shaft to your sack. 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.