This extender snaps over the stock metal spool holder that comes with the Bambu X1 Carbon. It allows spools to be positioned further away from the enclosure, as well as adding a smooth cylindrical surface so spools won't catch on the metal tabs that are present on the original holder. It accommodates for larger spool widths and outside diameters that won't fit on the original holder or in the AMS.
The author marked this model as their own original creation.