... diamete,else popular metal lapel pins 1. MaterialIron, Copper, Zinc alloy , Pewter , Brass , Aluminum, Soft enamel, Tin, Aluminum alloy ... etc. 4.CraftStamp, Die struck,Hard enamel, Imitation hard enamel, soft enamel, silk printing, offset printing , printing with epoxcy, sticker, Laser Engraving,Photo-etching ... before shipment Huajin Gifts Professional in badge/Lapel pinsWelcome your inquiry(Huajin)