Metal Souvenir Sport Keychain/Keyrings Feature: ItemMetal KeychainProcessStamping / die castingMaterialiron, brass, Copper,zinc alloy, gold, silver,stainless steel/iron, aluminum alloy, soft PVC and moreSizeAny size & customer sizeThickness2.0mm-5mmPlatingnickel, anti-nickel, black nickel, brass, anti-brass, copper, anti-copper, gold,..