Premium Materials: Made of zinc alloy, hard plastic and sturdy retractable cords, these badge fasteners are durable and loss resistant. The steel wire is not easy to break, and the use of tear-resistant steel drawstring makes it super wear-resistant and strong, much stronger than the nylon cord of a normal cord reel keychain. Perfect Size: this retractable keychain features a durable and stretchy 70cm metal covered retractable wire rope with a loop at the end of the rope so that you can attach it to keys, ID card holders or doors on the key of the card holder. -keys, ID cards and other items. The cord wrap is flexible and you can use it with belt loops, lanyards, clips on backpacks and other carrying cases. Easy to Use: The retractable retractable buckle allows you to wipe your identity card without removing it. You can also open the door without removing the key from the belt. Superior quality can greatly improve the service life of high performance key fobs, lightweight and easy to carry, this badge will make your life more convenient. Wide Range of Applications:since the key fob can be used to secure ID card holders, ID card holders, keys, etc., it is suitable for employees, nurses, employees, sporting events, security personnel, police, military, government, teachers, students, manager, durable retractable key ring for various uses.