Cooler Master HDD caddy grommet

This is a very basic design.

I couldn't find any useful ones so I thought I'd upload my own take on a Cooler Master hard drive caddy grommet.
The original ones got crispy and broke.
I made these in 2 halves and glued them together.
I think typically one would make the out of TPU type material so they are flexible.
The ones you see here are made from ABS filament.
They seem to do the job. Only time will tell.

I used a small file and drill bit to finish up the detailing.

I've included a Freecad file if one needs to make adjustments.