Key ring, also known as the key chain, keyring, keychain, key hanging, key holder, key tag, key button.. The materials for making the key ring are generally metal, leather, PVC, wood, etc.. It is exquisite, moulding the myriads of changes that people carry daily necessities every day. The key ring is a decorative article hanging on the key chain. The key ring only can reflect the individual's mood and personality, but also to show their own taste and bring a happy mood. There are various shape and style of key ring, such as cartoon characters, brand, simulation model and so on. The main material for key ring is zinc alloy now with nickel plating for protect the surface. The key ring has become a gift for enterprise brand promotion, new product promotion, tourist attractions, souvenirs, souvenirs celebration, advertising and other industries to commemorate the promotional items and so.