Feature: This glow-in-the-dark strip will make you more glamorous and glamorous at parties. The bracelet with monochrome LED flash is very cool, stylish and attractive. Flexible universal size for children and adults. Let those cool LED lights light up the night! Wearing this bright headband to a party or dance will help grab the attention of others and make you more attractive. Easy to use: The head has a built-in button battery. No need for extra batteries, you can directly operate the switch to make the LED light bar glow in the dark. Includes battery and replacement It is attractive for any occasion. Beautiful Glitter LED Strips for Ladies, Girls, Kids, Brides and Bridesmaids. Perfect for Christmas, New Year's Day, Weddings, Birthday Parties, Holidays, Photography, Masks, Party Gifts, Camping Trips, Glitter Parties, Concerts, School Class Awards, Carnival Awards, Bars and more. Specification: material: plastic Size: Adult and Child Elastic (as shown) Powered by coin cell batteries (included and replaced). Lighting mode: fast flash, slow flash, always on what's in the package 10 * headband