For use in repair, manufacturing of jackets, linings, boots, pants, tents, sleeping bags, purses, bags, and backpacks. Closed end zipper is a pre-cut, assembled zipper complete with a slider and bottom stop. Teeth Size: #5 Length: 20\” Tape/Teeth Color: Black Material: Nylon Teeth, Polyester Tape Uses 5CN-3 Zipper Slider