#8 Black Ranger Green Waterproof Zipper 

What's the advantage and disadvantage of #8 Waterproof Zipper ? Zipper is one of the most important accessories of backpack, which can directly affect the service life of backpack. There are different types of backpacks according to their different properties. According to the material classification, they can be divided into Resin Zippers (We also call it Plastic zipper ), Nylon Zippers and Metal Zippers. Next, I'll tell you about the characteristics of backpack zippers made of different materials. Let's learn about them together. 1. Resin Zipper Features: Resin Zippers are tough, wear-resistant, corrosion-resistant, colorful and applicable in a wide temperature range. In addition, because of the large area of the upper and lower planes of the fastener elements, it is beneficial to embed diamonds or precious stones on the plane, which makes the zipper more beautiful and expensive, and its value doubles, thus becoming a practical craft ornament. we have Giant Zipper #30 , which…