... -alloy, Aluminum, stainless steel, copper, bronze, brass, pewter, or according to your requests.2)Size:Optional: Usual size1/2 ... Injection,Photoetching, immitation hard enamel/Hard ename4) Backside: safety pin or butterfly clutch5) Plating/finish: gold, nickel, copper, brass, ... 's design, custom-made design and OEM7)Color:Pantone color chart. Below is our related other products, 2012 metal car badge, ...