... time 4.size:40-75mm diameter,or else popular metal badge 1. MaterialIron, Copper, Zinc alloy , Pewter , Brass , Aluminum, Soft ... bronze,Antique copper, Antique nickel, etc. 4.CraftStamp, Die struck,Hard enamel, Imitation hard enamel, soft enamel, silk printing, offset printing , printing with ... and the balance before shipment Huajin Gifts Professional in badge/Lapel pinsWelcome your inquiry(Huajin)