Never lose your keys or security badge again with this heavy duty retractable reel. The holder's belt clip attaches snugly to your belt, and when the retractable line is fully extended, you will get approximately 2.5 additional feet (0.7m) of reach. The reel case is made from chrome plated metal for durability, and it also includes an awesome urethane-encased design (as shown). The reel case size is approximately 1.6" (4.1cm) in diameter.