Christmas tree mount bushing for desk chair

I wanted a way to use an old desk chair base for the christmas tree. I measured the inside of a Herman Miller Aeron chair base and designed the bushing in Fusion 360. The infill is 65% for about the lower half of the mount and 35% for the remainder. The print also has 5 exterior walls. After printing, that amount of infill may be overkill but it is definitely strong. Feel free to adjust as you see fit. I also used PETG for the material.

Design by terry9137 on MakerWorld (license: BY).