Package Includes: You will receive in total of 28pcs glow-in-the-dark replacement zipper heads in 2 different styles, 14pcs of each style, enough for your daily use and replacement needs. Size Reference: Silicone Zipper Puller Heads 1: about 6x1.3x0.7cm/2.36x0.5x0.27inch; Silicone Zipper Puller Heads 2: about 7.8x1.7x1.2cm/3x0.67x0.47inch; Plastic Storage Box: about 10.8x7.4x1.8cm/4.25x2.9x0.7inch. Quality Material: Our luminous night zipper extender is made of quality plactic and durable nylon material, durable and strong, light weight, easy to use on your clothes and bags. Can be used to mark coats, jackets and backpacks that may be dropped or fall off during outdoor activities such as camping, camping, self-driving tours, barbecuing, tent zippers and more. Simple and Practical: Glow-in-the-dark zipper heads are used to mark coats, jackets, backpacks, tent zippers, or other gear that could be dropped in the dark, and can prevent you from tripping over your pack or rope in the dark. Wide application: These glow-in-the-dark zippers are perfect for outdoor camping, self-driving tours, night work and night running, widely used in bags, backpacks, bags, shoes, clothing, luggage bags, travel covers, roof bags, tactical bags, etc. ,also can be used for cell phones, key rings, wallets and so on, not only practical, but also fashionable, can add unique charm to your backpacks, jackets and so on.