Neodium Magnets : 20x10x2mm
But the model is parametric, so it is easily changed.
No glue needed, magnets can be inserted and replaced when unscrew.
Cut bottom corners from outside and leave small rim horizontally.
Also it require to cut used windows to make space for it.
Windows thickness is 3mm.
Adjust orientation before printing.
I print it with 0.15mm layer and 0.4 mm nozzle.
Enjoy
The author marked this model as their own original creation.