Practical Key chain, made of zinc alloy, stainless steel and iron, it is delicate and small, ever-changing in shape, and is a daily item that people carry with them every day. Fine polishing above, using anti-oxidation and anti-rust plating (multi-color), corrosion and wear resistance. Keychain has become a kind of gift. It can be used for corporate brand promotion, new product promotion, tourist attractions, souvenirs, school anniversary souvenirs, advertising and other commemorative promotional products.