160x160x90mm Stackable Box

I recently started playing wargames and collecting miniatures but struggled to find a good storage and transport solution for them, so I learned some 3d modelling and made my own. This is a square box with internal measurements of 152x152x80mm, perfect for placing miniatures with square, round, or any other base shape in. If you print multiple boxes they can stack with each other thanks to the design of the corners where the top protrudes and the bottom has an equal indentation. I recommend placing a metal sheet in the bottom along with magnets in the bases of the miniatures to keep them steady. If you have any suggestions for improvements please do let me know!