This unique Cinema Light-up Key Chain lets your students create their own stick-on messages and light them up! The 4" long plastic box includes a silver chain and split ring for your keys and comes with 75 letter and symbol stickers. Students can use the letters to spell out simple words and messages! Customize the top side of the box with your choice of a one-color imprint to make it unique to your school's Prom, Homecoming, or other school event. Includes button cell batteries and push button on back to turn off/on.