Summary This single model printed in multiple copies allows to create a picture gallery in which you can change pictures easily if needed. You just need to nail the frames to drywall using small nails. Frames should be spaced so that pictures can slide in without falling out. Both horizontal and vertical orientations can be done using the same part. The same piece has groves on both sides, allowing to use hold 2 pictures. It takes about 15 minute to print each piece. I had to turn model 45 degrees in order to fit it on the printing bed. Scaling is appropriate if you need bigger or smaller format.