... design 3.eco-friendly, rutless 4.low MOQ custom metal stopper /cord end /cord lock 5.material:zinc alloy6.various size ... , belt buckle, O ring, D ring, cuff link and so on),metal craft(like badge, charm), jewellary, furniture fitting, parts ... for tool, for electronic products and other zinc alloy die casting products. custom metal stopper /cord end /cord lock