Pack of 2 - Reflective ARMBANDS with Blinking LED Night Lights for Roadside, Cycling, Cross Training, Night Running, Hiking, Camping, Snowboarding, Raves and Concerts by MaximalPower (Pack of 2) New MaximalPower Reflective LED Armbands. These brand new florescent yellow/green reflective arm/leg bands also have 4 built-in blinking red LED lights. Batteries are included with your purchase. The battery operated lights and reflective strip will make any runner and/or cyclist HIGHLY visible to others. High gloss reflective band. Visible up to 300m! Velcro secures and sizes perfectly Replaceable battery. Batteries Included! (CR2032). 200 hours of run time! Length 16.9 inches (43cm) - Width 2 inches (5.1 cm) FOUR LED System provides front, back and side visibility. One size fits all.