Ender-4 filament guide wheel

If you like me have your filament in a dry box, then you can use this guide wheel.
Just place it on the filament holder on the back of the Ender-4

See a video on youtube about this filament guide.
https://www.youtube.com/watch?v=YcGfAH9o4Uk&t=21s&frags=pl%2Cwn