This is an adjustable photo frame that can slide open and closed to any size you like. Only takes two files, a corner piece and a side piece. Qty (4) each to make a rectangular frame or square. Use more to create L shapes or print out a bunch to make large LED lit BLOCK LETTERS! The sky is the limit. The files attached printed at 100% will give you approx 24cm (9.45") max sides and closed up will give you 14cm (5.51") sides (or any size in between). Also, feel free to resize the files to any size you need. I didn't use supports but you may want to for the corner gap where the picture rests. I decided not to add a hanger as I didn't want to limit how the frames can be used. Lastly, the frame can actually clamp the photo or glass as the friction of the slides keep it in place.

See a short video explanation at

God Bless:)