Beefy replacement stepladder foot

Beefy replacement foot for my stepladder.  I think It's quite a bit better than the original which was an extremely cheap and thin plastic cap which eventually just wore out.  This foot has a 1-inch wide opening, but you could probably scale it up or down 2x without a problem.  I made the walls 3mm thick, and the base 5mm thick, so hopefully it lasts for a while. 

I printed using Overture TPU, which I believe has a Shore hardness of 95A, which is probably just about the right mix between flexibility and durability.  If you make it with a different filament, let us know how it goes.  Make sure you set perimeters and infill to result in a solid print.  I included the 3mf file so you can see my settings.

I've included the Fusion 360 file if you want to modify/remix, but it's not fully parameterized, so caveat emptor!