Dump Cart Skid Plate (tongue rest)

I have a dump cart (lawn trailer) I use with my mower, which I keep in the garage. I have a finished floor in my garage, and did not want the metal tongue scratching into the finish. This is merely a resting pad, or skid plate, for the tongue end so it sits softer on the floor when not connected to the mower. It fits a steel 2.5" U pipe that is common on these kinds of trailers.

I admit that I am just learning beginning with TinkerCAD and wanted to make something simple, from scratch. Perhaps someone else out there will want one of these for their own trailer.