Spacer for filament spools

While vacuum packing my filament spools, I noticed that some of them tended to bend and eventually cut the bag, losing the vacuum. With these spacers, you keep the filament spool in place and avoid unpleasant bag breaks. It is designed for Anycubic spools, but if you download the .sldprt file, you can modify the sketch with the thicknesses of your spool.