bearing filament spool quick-exchange roll holder spindle thingy

woah
it holds the filament
and there are bearings
so it rolls better

wow

and it is so small you just stick the filament spool on and you're ready to go! no loosening screws. cutting-edge technology at its pinnacle.

the mid part goes in the middle.
the side parts do not.
they go on the sides and have things on them to keep the filament spool from not staying in the middle you know... it's amazing.

you need 2 bearings and some female screws to tighten all the stuff. length of