All steel mobile base with 2 fixed and 2 rotating casters. Rotating casters can be locked into fixed mode. Base can adjust from 18.5”x24.5” out to as large as 28.5” x33.5”. Built in levelers adjust for floor irregularities .
Base has 1200 pound capacity — useful for large power tools, stacked washer/dryer combos or other focused weight applications.