... coin,commemorative coins, numismatic coins Product namecustom zinc alloy casting metal coin holder with high quality and fashion ... bronze plated Materialzinc alloy,brass,bronze,aluminum copper etc.platinggold, antique gold, ... silver, nickel, black nickel, brass, copper, dyed black, chrome, dual plating, etc.Size35mm,40mm,45mm,50mm or customizedThickness1.5mm ...