Precise Control: Use a simple squeeze pump with reinforced metal cap intake valve and precision discharge valve that lets you raise and lower to perfect alignment. Easy Operation: The Smart Air Wedge Bag Pump allows one person to do the work of many. You can hold countertops, door frames, window frames, cabinets and more in place and keep them level! Lift, align, move and clean appliances, furniture, water tanks with one hand pump operation. Reinforced Material and Workmanship: Reinforced TPU material and sturdy and edges, the gasket bag is but not damaged, no marks. Versatile Alignment Tool: Inflatable air wedges are ideal for a variety of jobs and applications, such as precise alignment and leveling; replacing damaged pry bars and wood spacers, , doors, cabinet installations, appliances, HVAC, duct movement, and more . 353lb rated load: 353lb rated load, maximum load bearing; maximum 0.3mPa pressure loading rate. Greater lifting or pushing range and more versatility around work or the house.