so I always store all my filament other than ABS in a dry box and when I saw this container at wal-mart I figured it would work for holding a spool after a few designs and all I had a dry box I like it has a option to use a cotton ball or two for filament cleaner oiler as I always use one on my filaments. you can use the center part with 608 bearings if you would like of a simple piece of PVC pipe will work... I use both.
It's set up for 9 m3 bolts I think they where 6mm long but not 100% sure... I tapped the hols in the printed parts.
print 2 of each part except the template...
I have been told the bearing shaft is about 2mm to long so might want to scale it down a little in what ever direction you place it. I tend to just use a piece of PVC pipe cut to fit. Also might want to tape the holes in the container after drilling to make putting it together easier .