Chuzhao Wu 1.6" Metal Black Curved Lobster Clasps Swivel Trigger Clips Snap(Pack Of 20) Size:length:1.6 inches,width:0.8 inches,Clasps internal width:0.63 inches Hight:0.25 inches, The Clasps inside diameter:0.65 inches Material:Metal. Jewelry Accessories Strong Resistance To Corrosion Durable Smooth