SLIDER STOCK, the quality is very good , and have assorted colors. 1) Can provide nylon, plastic, resin, invisible, metal coated, metal, rhinestonezippers 2) Size: 3#, 4#, 5#...10#, or as customer's specification 3) Variety of pulls, sliders, zipper tapes 4) C/E, O/E, two-ways, A/L, P/L etclong chain zipper if you have any question or demand ,pls hasitate contact with us , we wil very happy to ...