delrin zipper open-end, all kinds of zippers: nylon, metal, delrin, plastic, rhinestone, both finished zipper and long chain... Nylon: #3,#4, #5,# ... gold teeth, silver teeth, rainbow teeth), L-type and Invisible zipper , woven type, water repellentResin/Plastic: #3,#4,#5,#6,# ... finished zipper and long chain non-lock, pin-lock, auto-lock, semi-autolock regular square teeth, Y-teeth, two-way teeth gold ...