... /Hard enamelMaterial:Brass, Zinc alloy, Stainless steel, Iron, Pewter, Aluminum, Soft PVCPlating:Gold,Anti-gold,Pearlized,gold,Nickel,Anti-nickel,Pearlized ... .5cm,3.5*4cm,Various small and large sizes acceptableLogo:Soft enamel color, Silkscreen/offset printing, Laser, Engraved, EmbossedColor:Color reference ...