Features: 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. 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. 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. Reinforced Material & Workmanship -- Reinforced TPU Material and Stiff durable edges the shim bag is durable yet not damage, non-marking. 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. Specification: Quantity: 1pack/ 2pack/ 3pack/ 4pack (optional) Color: Black Material: TPU + Nylon Maximum Sustainability Capacity: 160KG Maximum Pressure Capacity: 0.3mPa Air Inlete Valve: with metal cover Item Size: 160*160mm/6.3*6.3in Application: Window / Door installation, Car repaire etc. Packing List: 4 * Pump Wedge Bag 4 * Gas Tube 4 * Hand Pump Rubber