Picture of the actual printed object
This is a dissection puzzle that illustrate the Pythagorean theorems: the sum of the areas of the 2 smaller squares is equal to the area of the biggest one.
You can discover that by playing with this puzzle.
Small version (6.5 cm, walls are 2 mm).
More informations in this post
6.644 w x
7.832 d x
2.616 w x
3.083 d x