Distance piece for original Prusa filament holder

If the original MK4S printer is inside the original Prusa enclosure with the original Prusa filament holder the filament spool can be touched if the spool is at the outer end of the holder. This is also mentioned in the assembly manual:

Step 35 MK4S Spool installation

At normal printing the spool is not staying at the intended position and is always travelling to the outer end of the holder (also Prusament spools) when unrolling filament, which can cause a touch of Nextruder and filament spool. This part avoids that, if it is put to the outer end of the filament holder as shown in the picture.