Store your thread spools (up to diameter 21mm / hight 60mm) inside of this box. I suggest to print boxes in different colors to store threads of the matching color range.
The box is held shut with 2 or 4 magnets of 6mm diameter and 2mm hight. make shure to check the polarity of your magnets before glueing them in…
On the pictures you see the box printed on the Prusa mini+ with Prusament PLA galaxy silver at 0.2mm
The author hasn't provided the model origin yet.