Patio table umbrella grommet

The grommet between the umbrella pole and the hole in the table broke for my patio umbrella, so I made this as a replacement. There are a few similar designs on thingiverse, but they were either too flimsy or not the correct size.

The stl is for a 38.5mm umbrella pole and a 50 or 54mm table hole (different stl files), with small tolerances for some PLA expansion. I've included the Fusion 360 file which has parameters for these dimensions as well as overall length and flange size. If you require a different size and don't use Fusion 360, let me know and I can create an STL to suit.