Engineered for easy moving of most types of office desks by just one person. Reduces labor and moving costs; saves time and effort. No need to empty drawers or remove equipment and material from desk tops. Simply roll Mighty King desk lift beneath desk, depress handle and elevate desk. In seconds desk can be rolled in any direction. All Mighty King desk lifts are manufactured and assembled in the U.S.A. under rigid quality control standards. Casters: 3" x 1-1/4", hard rubber lowered height: 4-3/4", raised height: 10-1/4", lift frame: 16" x 32".