1 Dozen Light Up Work It Out Headbands come in assorted colors of yellow, orange, and green. They have three different flashing modes to choose from. NOTE: Light Up Work It Out Headbands are sold by the Dozen and come in an assortment of colors. When you order 1 piece, you are ordering a set of 12 Light Up Headbands. Therefore, when you order 9 pieces, you will receive 108 Light Up Headbands. Batteries included, installed, and replaceable.