40 Pc Lobster Swivel Clasps for Key Ring 37x16mm, DIY Crafts, Silver & Bronze Tone 40 pieces of key ring swivels with a lobster clasp (20 Silver Tone, 20 Copper Tone) Made of zinc alloy Size is 3.8cm x1.7cm(1 4/8" x 5/8") For DIY key chains, key rings, lanyards, or other crafts