We have different types of boxes for different uses:
Edge-lit Single-Sided type: 20mm, 16mm, or 10mm thick
Edge-lit Double-Sided type: 40mm thick
Please see www.feelisusa.com for details. We use high quality snap lock frames so it is easy to change your images at any time using portrait or landscape orientation. For larger boxes, you can choose either 2 or 4 sided LEDs so you can control the brightness as well as the color temperatures.