A good idea but needs improvement to work properly.
The sheets are not sticky enough. I followed the directions completely, hung my puzzle on the wall, and the next day all the pieces were on the floor. Fortunately, some areas stayed interlocked but it took me an hour to reassemble the pieces that had come apart. It's 26" x 20". I applied the sheets again to the puzzle and put masking tape around the edges to secure the pieces to the sheets. I made a firm backing by cutting a piece of mat board the size of the puzzle. I then placed small pieces of mounting tape (sticky on both isides) to the sheets and pressed the mat board firmly to them. The puzzle now has a solid backing like it would have if it was in a frame. I rehung it and it is working.
Possible improvements: stickier sheets or sheets with more stability.
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