D&D Magnetic Figurine/Miniature Case

I made this to transport my D&D Miniature without worrying about it getting crushed. I glued magnets into the corners to hold the case closed.

This case works well, although the magnets are small and therefor not overly powerful. It is held shut well enough to keep it from opening during travel in a packed bag, but if this was in a bag full of loose, heavy items moving around, it might get jostled open.

Magnets: 4mm x 1mm
Example: https://www.amazon.com/Magnets-Refrigertor-Whiteboard-Dura