... & UL certificate.This crystal super slim light box is unique design for the Engraving Crystal Brand ... distributes light evenly. Clear crystal slim light box with only 0.32"-thickness adds its value ... looks high-grade. Application:This crystal light box with nice engraving crystal logo is widely used ... ,garment store, hotel, bank, airport, subway, etc.Tips: Tip 1. Overal size is the whole product size ...