Product description Lighting Time: 8 hours Length: Approx. Diameter 6.2 x Width 1.5 (Various uses) Beautiful, eye-catching and fun. Perfect for festivals, concerts, Christmas, parties, and more Usage: Concerts, Penlights, Club Events, Karaoke, Banquets, Celebrations, Wedding After-parties, Glow Bracelet, Festivals, Camping, Christmas, Magic, Glow Ring, Birthday Parties, Nursery, Kindergarten, School Events, School Festivals, Bazaars, Prizes, Road Performances, Events, Outdoor Events, Outdoor Activities, Children's Toys. (Safe Material) Made from eco-friendly acrylic material, but it is also thick and stronger, so it is completely safe for children to use Create a Beautiful Space: This glowing bracelet set will glow brightly in the dark. It glows beautifully like the picture. The venue is dyed into a single color light and creates a wonderful space with a sense of unity. These glow party supplies are popular at festival and night events. NOTE 1.Please allow slight deviation for the measurement. 2.Due to the light and screen difference, the item's color may be slightly different from the pictures,thanks for understanding.