These heavy-duty retractable badge reels are built tough but not too heavy. They feature a metal body on the back but a reinforced matte black plastic on the front to help reduce weight. The cord is a strong nylon cord with a tight spring capable of holding heavy keys. Use the strap clip to attach your ID card, keys, and more. Comes with a metal slide clip on the back for securely attaching to your belt loop, belt, pocket and anything else.