PURPOSE: A convenient board jack is provided to move a vehicle from an isolated place such as in a parking lot due to an unexpected parking situations such as bad arrangement of wheels or locked hand brake without waisting time or calling a tractor. CONSTITUTION: A balancing air hoist includes a board(1) mounted with at least four wheels and a plurality of jacks(2) of which one is fixed on the center point of the board and connected with the others, so that this movable lift moves in the perpendicular and parallel directions.
