1. Ensure the material of the zipper file: the waterproof zipper file is made of plastic or rubber, which has waterproof and sealing performance. Choose a zipper that matches the zipper material to ensure waterproof effect.
2. Prepare tools: prepare a pair of needle-nosed pliers and a pair of scissors to operate the zipper.
3. Positioning the zipper gear: Push the zipper to the position where the zipper gear is to be installed, and ensure that both ends of the zipper are aligned.
4. Install the zipper head: insert both ends of the zipper head into both ends of the zipper with needle-nosed pliers. Make sure that the zipper is firmly fixed on the zipper. Adjust the position of zipper head: make sure that the position of zipper head is appropriate, so that both ends of zipper can be aligned smoothly and closed completely.