This Colorful Light-up Headband features a plastic headband with vibrant translucent mesh noodles and bright ribbon extensions. This Noodle Light-up Headband is battery operated: just flip the on/off switch located on the band and watch the bright noodles light-up to add some flair to your costume. Colorful Noodle Light-up Headband is 15 1/2in long and fits most teens and adults.