This light box shines as brightly as a theater marquee sign with a message that you create from 96 letters, numbers, and characters. The plastic tiles simply slide into the rows on the board making it easy to update any time. If you want to add color or personalize it in some way, there are extra blank tiles provided. This box has been very gently used as we kept it on the windowsill for all family members to see – my kids loved it! Note: Multiple tiles are provided for common letters, etc. however for some reason there are only 3 letter I’s which also serve as the number 1. My suggestion is that if you need more I’s, use the exclamation points upside as lower case i’s. Comes from a smoke-free, pet-free home.