Material: alloy metal, scientific plating method makes the key ring more shiny and durable Key chain size(L*W): about 35*24mm, small size Unique heart shape design looks more elegant, with 360 degrees Swivel base that is easy to use Wide use: you can use your imagination to DIY your own keychain, make pendant for lanyards, phone, bag, purse,key ring and other accessories, also can be used as dog buckle Package: 12pcs heart shaped swivel clasps