... , matt silver, nickel, black nickel, brass, copper, dyed black, chrome, dual plating, etc.Size35mm,40mm,45mm,50mm or customizedThickness1.5mm,2mm,3mm ... Process Casting,engraving,printing,etching,enamal,stamping etc.Packingpolybag+carton,plastic box+carton. or customized;UsageCommemorative,business gift,wedding gift,collectible ...