Bambu lab A1 mini filament holder/Spool holder. I found the original filament holder too small and therefore I designed a bigger and better fitting holder that replaces the original.
To install the new filament holder first remove the holder from the machine. Then press on the clip on the original holder as seen on the picture below.
Now just install the new holder on the orginal grey pary as seen in the picture below.
Now it's finish you can now install the holder on the machine again.