Harbor Freight 69054 Workbench hole plug
This is a simple plug to cover the holes on the Harbor Freight 69054 Workbench. It should also fit the 93454 bench. I'm not sure but I think they are really the same bench.
I made these because so much dirt falls down into the drawers of the bench through the holes in the top of the bench. I used this bench for 3d printing and for mounting a atlas metal lathe on them so it doesn't matter that these plugs stick up a little.