Jack stand pad for generic (chinese) 3 ton jack stands. Snaps on. Prevents damage to undercoating.

I printed this in TPU with 5 walls and 50% infill to allow some deformation. Probably too tight to snap on if printed in non-flexible filament.

To test fit and scale: print first couple of layers in filament of choice and test by sliding it on sideways. If slightly too tight to snap on when test printing with PLA or PETG, will fit snugly when printed in TPU.