High–visibility safety light is quick and easy to use with this "slap it to snap it" bracelet. Durable nylon band has a reflective spider web design that illuminates when you turn on the red LED. Slap the band on your wrist, upper arm, ankle, or any tubular object. Ideal for walking, running, or cycling in low–light conditions. Runs on one 2032 3V lithium battery (included).