Fun Central I510 LED Light Up Fiber Optic Headbands - Assorted - 12 Pieces ONE SIZE: These Fiber Optic Headbands come in one size that is the perfect size for every kid and adults who would like to wear them. FIBER OPTIC: Each LED Light Up Headband is topped with Fiber Optics at each side which you can light up for an amazing effect. The strands of fiber optic illuminate a bunch of colors from tip to tip. PERFECT FOR: These Fiber Optic LED Headbands are perfect for different fun parties and occasions including neon parties, rave parties, birthday parties, Halloween parties, Christmas parties, New Years Eve and many more. ASSORTED: The Light Up Fiber Optic Headband comes in a polybag packaging which includes 12 pieces of Headbands in assorted colors such as red green and yellow. Batteries are already installed and included. SAFE: Our Fun Central Fiber Optic Headbands are made from high quality materials that ensure the safety in using our product. The Headbands are non-toxic and environmentally friendly.