【Multiple Use】: This air shim is a good helper for installers, construction workers, and homeowners alike, making their jobs easier and more efficient, such as precise alignment and Leveling, door and window installation positioning, furniture installation assistance, portal installation assistance, lift heavy objects, level appliances, cabinets, and install Windows and doors, and level shim furniture and so on.【Load up to 440lb, Save Time, Effort】: This inflatable air wedge is made of high-quality TPU rubber material. It is wear-resistant and non-leaking, load up to 440lb, installations or leveling with just a single installer, saving time and labor costs.【Easy Insertion Into Narrow Areas】: Internal piece of this air wedge bag pump allows insertion into narrow areas, tight areas, gap spanning capacity ensure more versatility in your work, also make it a must-have for doors, windows, furniture, appliances precise alignment and leveling.【19.7 Inch Long Hose】: Compared with other airbags with hose usually 10 Inch, this airbag extends the hose length to 19.7 Inches, allowing air shim inflatable wedge to be operated with over a longer distance for more flexible, efficient and convenient.【Adjustable Metal Valve, Easily Use】: Compared with other air bag pump with plastic valves, This inflatable shim bag is equipped with a new metal valve. It is easy to make fine adjustments, easy quick release. Quick and easy push-button air valve that can be accurately leveled with one hand.