nylon zipper: 1.Different quality and different weight 2.Teeth are smooth and soft 3.Small order is ok nylon zipper: 1.Size: 3#,4# 5#,7#,8#,10#,various length and tape color2.Material:nylon,plastic,metal,waterproof are available3.Type: C/E.O/E,two-ways,A/L,P/L etc4.High quality, competitive price and quick delivery5. Free samples can be offered for test .6. OEM or customer's designs are welcome