Lift, align and level windows, doors, cabinets, furniture and appliances with this Air Wedge and Leveling Tool. Simply slide the air wedge under the workpiece and pump it to the desired height. The hand pump delivers precise and smooth adjustments, while providing heavy lifting power up to 300 lb. Moving something heavier? Use additional bags for larger weight capacities. The thin 0.07 in. profile fits into tight spaces where other tools simply can’t. The durable, nonmarring material will not damage floors or furniture.