... 4.manufactory 5.on-time delivery Namemetal zipper sliderMaterialzinc alloy,brassSizedepends on your orderColourracking black nickel (nickel free)Technicstamp,polishing,electroplatingAdvantagesProfessional electroplated ... accessories many years,especialy in these products buttons,buckles, labels, zipper pulls, eyelets, prong snaps, toggle stoppers, rivets, hang tags,and ...