This spool holder is designed to take large spools with a size up to 85 mm. The construction is very solid and strong and can take any 1kg spool without bending or breaking. The spool axis snaps lightly into the holders for easy spool replacement but the spool stays solid without getting loose or falling off.
It consists of three different parts:
I am using this spool holder to feed filament into my A1 mini printer. The ball bearings guarantee a good running smoothness without making noises while printing. – Joe Ram