Be a majestic fairy or a pretty butterfly with our LED White Butterfly Wings that is a perfect accessory for Halloween costume parties, Halloween, school play, and birthday parties. It measures 15" by 18" and very lightweight for any kid can wear. LED Wings have 2 elastic straps that go around the arms for one size fits most kids. Press the button on the battery pack to turn the flashing mode on and off. 2 CR2032 batteries are included, installed, and replaceable. Sold 1 butterfly wings per pack.