... /lapel pin is made of zinc alloy in Soft Enamel, with anti-copper plated,mainly used for promotion gift ... copper, iron, stainless, brass, aluminum,zinc alloy etcStyle: new enamel, soft enamel, photo etched, silk screen printing, offset printing, zinc alloy ... bar, keyring, tie tac etcEpoxy: yes or noThickness: optionalUse: souvenir, promtional gift, decoration, collection,recogniton in a unity, group, ...