1、Versatile Alignment Tool -- Inflatable air wedge great for multiple jobs and applications such as, Precise Alignment and Leveling; Replaces damaging pry bars and wooden shims, Window, door, cabinet installations, appliances, HVAC, plumbing moving, etc. 2、Effortlessly Operation -- Smart Air Wedge Bag Pump enable one person to do the job of many. You can hold in place and level countertops, door frames, window frames, cabinetry, and more! To raise, align, move and clean appliances, furniture, water tanks with one handed pump operation. 3、353lb Load Rating -- 353lb load rating for maximum weight capacity; Maximum 0.3mPa pressure loading rate. Greater lifitng or push range and more versatility on the job or around the house. 4、Reinforced Material & Workmanship -- Reinforced TPU Material and Stiff High quality edges the shim bag is High quality yet not damage, non-marking. 5、Precise Control -- Using simple squeeze pump with enhanced metal cover air inlete valve and precise bleeder valve lets you raise and lower to perfect alignments.