1, material ZINC ALLOY 2, promotion charm keyrings 3, good quality with low price. 4, fashion charms keyring Process: All processes are available, it's depending on the design and customer requirement Material: Brass, zinc alloy, tin, iron, pewter, aluminum, stainless iron, cooper, etc. Size: can be more large or smaller depend on client request. Thickness: Generally 0.8-1.5mmPlating: Gold / ...