ZOID is a unique shaped c-ring, but it does stuff you want: its supper rubbery but strong and bouncy when stretchedthe shape is wider at the base narrow on topthis keeps ZOID positioned where you want, but adds more under-sack lift. That is more bulge, more lift, more of your hunky junk. This is what we call a comfort ring, its midsize for most everybodyit fits thicker junk, skinny junk, chunky junk, jumbo junkit has a ton of stretch in a size thatll make everybody bulgier. 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.