It is a classic lego 2x2 brick (300321) 6x magnified.
Dimension : 96 x 96 x 67,2 mm
Leave me your experience in the comments please. I will be happy if you share your prints.
If you are printing a model with supports, enable "Detect thin walls" in PrusaSlicer or "Print thin walls" in Cura.
If you like my design, you can click to follow 🙂
The author hasn't provided the model origin yet.