Summary

Stackable Box in 3 sizes - 100mm tall, 75mm tall, 50mm tall

Designed to stack on top of each other, the tolerances in the lid allow a slight grip.

I have stacked these ten high no worries

I recommend using a .6 or even .8 nozzle for the box to speed up print time.
Overhangs on the lid do not need supports if you slow the speed down and have decent part cooling

These also fit TCG card savers in them