The super glowing mohawk head band comes with a stretchy head band that fits most small/medium head sizes! The mohawk sits nicely on your head with 8 flashing red, green and blue LED lights. The lights come in 6 different functions! Also 8 fiber optic extensions are included. Each fiber optic 'spikes' can be adjusted for optimum light show fun. Just seperate them in half fold over each half of the fiber optics until they flair to your liking! The on/off function changing button is located on the side of the mohawk near the back.