1)zipper's material,size,Color,Length,Type as your request. 2) Environmental and Healthy Zipper.More information,welcome visit SpecificationResin zipper/derlin zipper1) Size:3#,4#,5#,7#,8#9#10(Yteeth,normal teeth,dormal teeth,double-dot etc)finishied zipper and long chain zipper are both available.2) Type:Open-end/Closed-end/Two-way/X type/O type/Auto-lock/Semi-auto-lock3) Color:brass,anti-brass ...