4ID Power Armz LED Arm Band, 8 1/4inH x 5 3/4inW x 1inD, Blue

Shine bright in the dark. Whether you are walking the dog or out for a jog, this weatherproof arm band helps ensure passersby will notice you at a glance. Bands comfortably fit around most arms. Weatherproof design holds up against the elements. LEDs provide high-intensity light for up to 100 hours. Includes 2 CR2032 batteries. Backed by the manufacturers 90-day limited warranty.