To activate your Light Up Fairy Wings, press the button on the battery pack. Multi Color LED lights flash continuously. The lightweight, compact size wings are a sheer aqua material with glued on glitter designs. Note:One size fits most.Specifications: Height: 14.5 in. Width: 20.5 in. LED Colors: 2 Blue, 2 Green, 2 Red Batteries: Includes 3 replaceable AG10 Batteries Weight: 1.65 lbs