1.Promotional Metal Cufflink Size : 16-25mm Material : brass or ZINC . Technique : stamping Low price with high quality *material:can be made in gold,silver,zinc ... /finish:nickle,black nickle,gold,imitation gold,glossy copper,antiquecopper,green bronze,silver,antique silver plating and so on.*color referance:with soft enamel/cloisonne ...