delrin zipper open-end, all kinds of zippers: nylon, metal, delrin, plastic, ... autolock, dyed teeth, plating teeth (gold teeth, silver teeth, rainbow teeth), L-type and Invisible zipper , woven type, water repellentResin ... chain dyed teeth, plating teeth (gold teeth, silver teeth, rainbow teeth), common teeth and thin teethMetal: #3,#4,#5 ... quality and the best service. delrin zippers open-end