The author remixed this model.
This 2 kg filament clip works on many spool brands including Colorfabb & 3DJake spools and probably more. Very simple design.
I made the hole and strip which is attached to the spool bigger. To make sure it goes over the edge of the spool.
Use 2 perimeters and PETG or PLA filament for best results.
This model is a Remix of Simple Universal Filament Clip V2. Which I created after finding out the normal one doesn't fit on 2 kg spools.