1.zipper(metal,resin,nylon,) 2.we have our own factory 3.high ... 3,#4,#5,#8,#10,finished zipper and long chain.Non-lock,pin-lock,semi-autolock,Dyed yeeth,plating (gold teeth ... teeth,silver 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-autolock,Gold brass,antique brass,nickel ...