Outdoor Safety Shoe Light Clip Bright Luminous LED Running Walking Light Clip Item size: 3.54" x 2.55" x 1.18" Can be used around your wrist as a bracelet Multi-Use: Walking, Running & Cycling Fits Most Athletic Shoes Light weight so you do not feel anything Wraps around the heel of your shoes Flashing / continuous neon green light setting so you can be seen in the dark 72 Hour Burn Time: Continuous 96 Hour Burn Time: Flash Weather Resistant User Replaceable Batteries