Be the life of the party and light up the night with these fun LED fiber optic headbands! Each assortment comes with red, yellow & green headbands with 2 removable 4 1/2" fiber optic pieces, with some assembly required. To insert the pieces, simply spread the holder on the headband slightly and push the end of the fiber optic piece hard into the hold. Slide the switch on the back of the battery pack to turn on the morphing, chasing, blinking multi-color mode. Three replaceable AG13 batteries are included & installed. Add an imprinted brand name or logo to create an eye-catching promotional giveaway! Perfect for Halloween, costume accessories, party favors & more. Sold by the dozen - please order in increments of 12. The color assortment may change without notice; we cannot guarantee color.