popular metal lapel pin 1.garment lapel pins 2.material:brass,iron,zin alloy,etc 3 ... .40-75mm diamete,els popular metal lapel pin 1. MaterialIron, Copper, Zinc alloy , Pewter , Brass , Aluminum, Soft enamel, Tin, Aluminum alloy or other ... copper, Antique nickel, etc. 4.CraftStamp, Die struck,Hard enamel, Imitation hard enamel, soft enamel, silk printing, offset printing , printing with epoxcy, sticker, ...