We're a professional China pin manufacturers and China pin suppliers with 22-year experience. Metal pin is made of iron, copper, brass, aluminum or zinc alloy. With different plating(gold, nickel, brass , copper, antique-gold, antique silver etc). Pin can be used for awards, souvenirs, promotional gifts, special event ex wedding, decoration etc. Pins can be in different shapes and sizes according to the designs. Butterfly clutch is a common accessory for a metal pin.