This is an accessory for the AMS Riser by maCyo42: https://makerworld.com/en/models/133452
You can hang your spool ring adapters instead of having them laying around.
Settings to print without support. Adaptive layer height for smoother curves.
Here you have a spool holder that can accommodate mini spools, as they have smaller diameter, they wont fit on the original model: https://makerworld.com/en/models/216328