filament spool storage

Designed a spool holder for storage. Dont have mutch room around the printer, but they would fit flat to the wall. Because i keep my filament in a plastic bag to keep moisture out, i couldn't just hang it from a pole.
I did mount this bracket only with the top screw, and its holding very secure.
I use between the parts aluminium pipe with 12mm outer and 10mm inner diameter.
Did cut them 85mm long. (my filament spools are 80mm wide)
Easyest way to fit them is with my cordless drill, just fit the pipe in the chuck, and spin and push it on the mount, by doing it ths way, its almost welded on the mount.

I use it with spools of 200mm diameter, 80mm wide, and 1kg filament on the spool.