Plastic House Cereal Box Filament Roller

I created this version to work with the Plastic House Cereal boxes sold on Amazon. These are a snug fit because those boxes are a little narrower than some of the other versions out there. 

I used some 608-ZZ bearing and M3 screws. The inside mounts are sized for a direct screw in fit. 

Update: 

I added an updated spool and pin. The updated spool has a larger diameter to fit certain types of filament rolls better.