filament guide for Creality ender 3. Only needing two 608 bearings and a 4mm x 30mm bolt with nut. 

FYI it has come to my attention that people have been using a different “pulley” on the bearing, in my testing the sloped walls of this other bearing had a tendency of letting the filament “walk” up and out of the bearing pulley. Please be smart and do not rate this poorly if you made any mods to it. I made it this way for a reason, it has been tested, cant tell you why since i no longer have this printer.