These zipper pulls extension cords are mainly used as pull handles. Convenient to use, and make you pull faster. Suitable to use on backpacks, document bags, suitcases, shoes, handbags, luggage, wallets, jackets, coats, purses, handbags, etc. Specification Color: Blue Green Mixed Color Material: Nylon Rope Diameter: 4mm / 0.16 inch Puller Size: 28x20x8mm / 1.1"x0.79x0.32 inch (LxWxH) Total Length: 80mm / 3.15 inch Package Content: 15 x Zipper Pulls Advantages Nylon material, rough surface, anti-slip design, comfortable to touch. The woven pull head can help you pull easier even if you are wearing gloves. It also can be easily connected to any common zipper as a substitute or a zipper extension. Instruction 1. Make a rope ring. 2. Make sure the woven pull head goes through the ring. 3. Pull out the woven pull head and tighten the rope. Notice Please note that when the zipper chain is stuck, don't pull it with too much effort, as the zipper pulls might be damaged.