5 model

Free

Dremel Plastic Spool Adapter

Printables

Free

spool for leftover plastic filament

Thingiverse

Free

ELEGOO CENTAURI CARBON 2- plastic spool reel adapter

Printables

Free

3D-printable split filament spool/Plastic reel 无盘料盘

Printables

Free

Extended Unlockable Loose Filament Spool (Push Plastic Sample)

Thingiverse