This filament guide is made for the Creality Ender 3 S1 pro printer and replaces the - in my opinion completely useless - Filament Runout Sensor. My model significantly reduces the friction with rubber-like filaments (e.g.: TPU), improving the print quality.

If you want to use it, you have to unplug and unscrew the Filament Runout Sensor with an allen wrench (unplugging it doesn´t show any “no filament” warnings). Then use one of the previously installed screws to screw in the 3d-print.