The Nite Ize Slaplit Led Slap Wrap features "slap it to snap it" technology with an added dimension of LED illuminating functionality. Made of durable nylon patterned with a reflective spider web design, the SlapLit is powered by a bright red, easy-to-activate LED that lights up the entire wrap. Turn it on, slap it on your wrist, upper arm, or ankle (or any tubular-shaped object, for that matter), and you've got instant nighttime visibility. Lightweight and durable, the SlapLit is perfect for after-dark lawn games running, walking, or cycling at night and outdoor evening concerts and events. Use and reuse countless times - the SlapLit can be straightened with a simple twist of the thumb and stored flat, or used as an LED marker beacon.