Etekcity LED Hair Lights15 Pack for Christmas Party Favors Party Supplies, Light Up Toys with Flashing Hair Fiber Optic Extension Barrettes Changing colors Flashing LED braids hair extensions for adding an extra flair to the night Can be cut to match natural hair length Uses two replaceable batteries that can be hidden under your hair for ultimate convenience Easy and quick to click on and off of hair, backpack, purse, or clothing Great for dance parties, night clubs, and events