608 bearing filament guide

This is my first thing! Forgive me if it's not so good.
NOTE: After a day or so of using this, I'm finding that the post that the 608 goes on could be a bit skinnier (.25 or .50 mm) and that the snap at the top could be a bit longer (another 1 or 1.5mm). Still, not bad for a first try! I will try to update this thing in the next day or two with these modifications.
I keep my filament spools on a roll made of 1/4" PVC pipe at one end of my desk. My 3D printer is at the other end of my desk. I have a few of these mounted on the wall to guide filament along the wall from the spool to the printer.
The screw hole is for 3mm diameter screw. I'm sure you could use that to sure the filament guide to other stuff.
Snap the top in before screwing to the wall (or whatever). You may need to fiddle with the hole size... it's a friction fit, exactly 8mm (the inside diameter of my bearings according to my caliper).