Vertical holder for Storage Box

This is an add-on for my models of the Storage Box for Filament spool.Important: this add-on is useless if you don't use any of ‘Storage Box for Filament Spool’ models! https://makerworld.com/@elRonaldo/collections/2629895 I have received an request as to whether I can design some kind of ‘feet’ for the spool container so that the spools can be stored vertically. However, I didn't want to make anything that would make the containers wider and waste space when storing them. I also didn't want to make anything that would have to be glued to the container. So I drew this simple stand. It is intended for containers in which 1 spool can be stored. Please feel free to give feedback if this is useful for you or if I would like improvements and adjustments.