I had a large picture frame with a cheap print I bought several years ago. I took the picture out, took the glass from behind the frame and glued it to the top of the frame, there's just enough lip to lay it on the outside of the frame. I used masking tape on the edges of the glass (careful, it's sharp). Like above, I use an LED light underneath the glass. I tape whatever I'm tracing on the underside of the glass and prop the back of the frame on a book for a bit of elevation to trace onto my fabric on the topside of the glass. Like others above have said, I don't use it often, but it is nice to have when I need it and my arms don't get tired holding it up to a window and only being able to trace in daylight. The rest of the time, I place it on my cutting table, glass side down and use it as a tray for my cutting stuff.