Simple fit all filament adapter.  If you filament is 63mm or greater diameter, this design will just slip over the ends of the Elegoo printer spool holder arms and stop your spool falling off!  Great if you need a fix ASAP!

Around 21 mins print time and uses less than 12g of filament for the fastest print, or a slower (by a few mins) full cylinder type, print whichever you prefer.

These are ideal if you are printing TPU as they will help with extrusion friction caused by the regular Elegoo spool holders, but still stop your spool falling on the floor.

Of course it will make filament retraction less impressive, but not really an issue for TPU