... 3.the slider is nickle-free 3.resin zipper for garment Nylon:#3,#4,#5,#8,#10,finished zipper and long chain.Non-lock,pin-lock,semi ... teeth,rainbow teeth),common teeth and thin teeth Metal:#3, #4, #5, #7, #8, #10, finished zipper and long chain.Non-lock,pin-lock,semi ...