Seekingtag 15 Pack LED Fiber Optic Light up Flashing Hair - Party Supplies(Multicolors) Multicolor LED flash braids, pack of 15, 3pcs batteries for each fiber optic hair has been installed. Easy to turn on the hair lights with the switch, which could make your hair glow with multicolors. Easy and convient to clamp on your hair, clothes Reusable,the 3pcs batteries can hold up over 24 hours, then you could replace the battery if you wish Great choices for dance parties, carnival, festivals, wedding party, birthday party etc.