Chuzhao Wu Alloy Silvery Lobster Clasps Swivel Trigger Clips Snap Hooks With 4/5" Key Ring(Pack Of 40) Lobster Clasps size:12" X 0.4" X 0.2" Key ring diameter size:0.8" Good Elasticity In Lobster Clasps Strong Resistance To Corrosion And Durable Brightness