guide for flexible filament into bowden extruder

for flsun i3.
I replaced the xtruder by this
https://fr.aliexpress.com/item/MK8-Aluminum-Alloy-Bowden-Extruder-For-1-75mm-Filament-3D-Printer-Parts-Reprap-H029/32834635459.html

I needed a precise guide for the filament in the flsun 3D i3 using a metal bowden extruder with the flsun screw mounted on the motor.

Without this part it is impossible to print with rubber or flexible filament
This part guide the filament close to the wheel