Rosco Duolock Snaps offer excellent no-twist protection when trolling and casting for light- to medium-sized game fish. A simple 1-piece, double-locking design ensures that these superstrong, dependable performing stainless steel snaps are quick and easy to attach to lures and leaders. Ring and snap are matched to swivel size. 36 pack. Sizes: 5, 4, 3, 2, 1. Colors: Black, Silver. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Snaps.