Came out of a box lot and has a sharpened blade at one end. Guess it would be good to clean up a corner. Will work both vertical or horizontal.
Not quite clear what the wheely looking things do.
used to scrape paint at edges of wood window sash after sloppy/cheap painter did his job
The large wheels allow it to roll on its side. The very small wheel in the back (hard to see) allow it to roll upright.