Spool Hanger for Filler Spool Holder

This is kind of a remix of a remix. I wanted a better way to hang filament spools on the rod that goes across the top of my 3D printer stand, so I could swap out spools without having to unscrew the end, and also so I could hang multiple spools and swap out one spool without removing the others. So I took the double-ended Roller Guide from Kevin_Flet's remix (https://www.thingiverse.com/thing:5697763) and the Roller from HugoHuge's Filler Spool Holder (https://www.thingiverse.com/thing:3020026), and designed hangers to suspend them from the round bar.
These should fit any bar up to about an inch in diameter, and they allow enough room to add or remove a full 1kg spool by just lifting the spool and roller assembly out of one of the hangers.
I'm including the FreeCAD file in case someone wants to customize this to fit their needs.