This is a filament feed tube holder for the FlashForge Creator Pro. With this particular model, it has 4 filament feed tube slots and also has a lower filament feed tube holder. This allows to have 4 independent filament feed tubes for filament coming from the machine and filament coming from an external source such as a filament dry box.
The author marked this model as their own original creation. Imported from Thingiverse.