... :40*40*2mm 4)Plating:silver 5) Useful: gifts, collection and souvenir Coin,1) Materials:can be Iron , brass , zinc alloy , gold ... : Nickel ,black nickel , imitation gold , gold , glossy copper , antique copper , green bronze , silver , antique silver plating and so on .5) Color Reference ... freight , by sea or by DHL/TNT/UPS/EMS/...Express. Coin