This is a magnetic parametric storage container. Below I have attached a .f3d file for the model so the parameters can be modified. For non-Fusion 360 users I have also attached a 50x50x50mm version of the box in .stl format.
For the magnets I used D4x2mm round magnets which you can find here- https://a.co/d/3I8mO1i
(this is not an affiliate link)
The author marked this model as their own original creation.