Filament / Spool storage

I've created this Spool storage to better store the filement and allow easier acces to the spool.The holder is build out of the same 3d model twice and can be put together without any tools. -There is no extra hardware needed-but please note, if you print it out of PLA and then put it on the printer like I did, then there might be a chance that it'll melt under the heat of the glass below. I would be honored if I'll get feedback and how to improve the design.