LED 4-way Lighted Reflective Flashing Wristband for Night Safety Sturdy 3/4" nylon band secures with adjustable velcro at wrist or arm - fits 7"-8" 4-mode clicking switch - strobe, flashing, steady and off Wear one on each wrist for night safety when jogging, walking, taking the dog for a walk or at a nighttime event Fun party, club, activity or event gift LED light runs on 2-CR2032 cell buttons (included)