The No. 3 nylon zipper is composed of nylon monofilament winding around the center line, and the fabric belt is woven from polyester, which is environmentally friendly, not easy to deform, durable, lightweight, high production efficiency, low price, and has a competitive advantage in the sales market. The No. 3 nylon zipper usually consists of a slider, sprockets, chain straps and a top stop. 1. Slider: The slider is divided into upper and lower parts, the upper part is usually the handle, and the lower part is the pull rod. The handle is connected to the pull rod, and the zipper is opened or closed by pulling the pull rod. 2. Chain teeth: The chain teeth are composed of a series of small teeth, which can mesh with each other and ensure the firmness of the zipper. 3. Chain straps: The chain straps are the sides of the zipper and consist of a series of fabric or leather strips to carry the sprockets and make the zipper more stable. 4. Top stop: The top stop is a small piece of metal or plastic that secures the end of the zipper to clothing or other items. The above is the composition of the No. 3 nylon zipper.NO.3  nylon zipper is suitable for children's clothes and bedding. It is lighter, more beautiful, easier to handle, and more durable. It is widely used not only in children's clothing, but also in some household items such as quilts, pillows and so on. It is also of great help to keep the home tidy and hygienic, easy to wash and replace. In addition, it is also very suitable for manual DIY and the addition of some small decorative details, and can be used for DIY production of wallets, card cases, school bags, backpacks, etc.