Increase your low light visibility for late night runs or hikes easily with the Nite Ize® SlapLit™ LED Slap Wrap. An easy-to-put-on slap bracelet, the SlapLit features a built-in, easy-to-activate red LED that lights up the entire wrap for instant nighttime visibility. A versatile wrap that goes around your wrist, upper arm, or ankle, this lightweight wrap offers up to 100 hours of run time on its included 2032 3V lithium coin cell battery. Nylon exterior.