Box for electronics

It is a box 14x12x4cm with 4 mounting holes (3mm).
Cover is supposed to(not tested yet) hold in place 2 circular magnets (5x3mm) glued to magnet holders on cover. There are 2 holes (2mm) in box dedicated to screws that should attract magnets. The idea is that you tighten the screw so you achieve distance between magnet and screw, hence having desired holding force of magnet.

Plans:
- add mounting holes for electronics