Materials: brass, iron, zinc alloy, stainless steel Plating: gold, silver, bronze, nickel, black nickel, chrome, copper, anodised plating, misty plating, brushed brass anti-(gold,silver,copper, bronze) Processing: stamped brass and iron, die casting, spin casting, photo etching, printing, laser engraving etc. Logo: synthetic enamel, soft enamel, cloisonne, laser engraving, silkscreen and offset printing etc. Thickness: Various thickness available Available attachment: ribbon, butterfly clutch, safety clutch, English pin etc. Color reference: pantone color chart or AOKI chart Packing solution: polybag, opp bag, blister, velvet box & bag, leather box & bag, backing card and so on