Detailed Product Description Features: 1) Models: 2#, 3#, 4#, 5#, 7#, 8#, 10# 2) Nylon zipper: 3#, 4#, 5#, 7#, 8#, 10# (we can produce according to your detailed need)3) Plastic zipper: 3#, 5#, 8#, 10#, 20#, 25#, 30# (PP, POM)4) Metal zipper: 3#, 4#, 5#, 8#, 10# (brass, antique oxide nickel copper aluminum)