key chain bottle opener,made of zinc alloy with silk printing,OEM is most welcome! 1) Materials: brass, iron, stainless steel, pewter, aluminum, zinc alloy2) Plating: gold, anti-gold, silver, anti-silver, nickel, anti-nickel, black nickel,brass, anti-brass, copper, anti-copper and dyed black3) Processing: stamped, photo etching, injection4) Logo: silk printing, offset printing, laser printing, ...