this is a snap in frame to hold a 90mm square lithophane backlit by a light board powered by a micro usb cable and a wall plug or a portable battery pack with a usb port. turn a picture of a loved one or a memory into a new perspective with this lithophane that may look strange at first but as soon as the light is activated it look amazing with all the detail of the photograph in a 3d perspective that really makes the image pop. **any questions or after the purchase either private message me through here or email at richprints3djax@gmail.com with the order number and the image that will be in the frame for me to start my process.any picture will work but understand that a little bit of cropping may be needed to get the size and shape that is needed for the frame so if there is one that has a little bit of empty space outside the main image this insures nothing will be altered as far as cropping and resizing **