This pin badge/lapel pin is made of zinc alloy , with gold plated, mainly used for promotion gift. Yaohong ... and Enthusiasm.Pin badge:Mateiral: copper, iron, stainless, brass, aluminum,zinc alloy etcStyle: new enamel, soft enamel, photo etched, silk screen ... , zinc alloy injection, 3D mold,die struckSize: according to the client `s requirementColors:Pantone chart, DIC,Chart, Aoki cloisonne color chart ...