The is some invisible zipper with nylon material made, practical and durable, which can serve you a long time. The zipper head is tightly inlaid with the zipper teeth, pull together smoothly. The sewing zipper can be used in crafts, clothing design, clothing, boutique accessories, clothing decoration and so on. Features -Color:Black -Material:Nylon -Size:60.00X3.50X0.30cm/23.58X1.38X0.12in -The sewing zipper have nylon material, double-sided zipper design, more convenient to use. Can meet your different needs. -It will add a fashion element to your crafts, making them look more glamorous and unique. -You it for crafts, costume designing, clothing, boutique accessories, costume decorating and so on. -The zipper can be used to fix or make bags, clothing, , pouches and purses. Suitable for sleeping bags, yurts, bed net and other occasions. -Zipper is made of nylon materials, very convenient to use, would meet your expectations. Package list: 5 x zippers