To activate your Expandable LED Prism Sword, remove the pull tab & press the button on handle. With each push, change the LEDs to 1 of 6 options: fast flash, slow color change, all lights on steady, red blink, blue blink & green blink. Dimensions: Length 20.5 in. collapsed / 37.5 in. extended Width 3.25 in. at widest point in handle LED Colors: Blue, Jade & Red Expandable LED Prism Swords include 3 replaceable AAA Batteries.