Undermount spool holder

Searched for a spool holder that could be hung over my P1S for direct feeding using soft TPU because this type of filament needs absolutely no tension and using almost no PTFE tubing to ensure a good extrusion, so I've designed one myself. It's simple and effective. You could export in STL and rotate of 90deg the bearings holder (the half circles) so you could use it on the wall. There are 2 holes for screws. This model is sliced and ready to print with PLA. You need at least two bearing