The strap's medical grade silicone snap rings come with 3 snaps on one end and 2 on the other, giving the wearer 4 options to find the correct size. Traditionally snap rings are made of uncomfortable hard-stitched leather or rubber and until now have never been crafted from soft touch silicone. Safe with all lubricants, completely hypoallergenic, non-irritating and compatible with sensitive skin. One size fits most. Measures 8.25 in. long by 0.75 in. wide.