The air cushions are made of thick TPU material, which is durable and resistant to wear. The valve is fully sealed to prevent leaks and allows for repeated use. The air bags are very flat, only 1.5 mm thick, and can be easily inserted into tight spaces. When unloaded, the cushion can inflate to a maximum thickness of approximately 7 cm. The included hand pump features a check valve for effortless inflation and deflation, allowing you to release air by pressing a button to adjust to the desired height. The mounting cushion measures 16 x 16 cm, with a 25 cm rubber hose, and supports a load capacity of 200 kg. One person can easily lift heavy objects, providing convenience for installation tasks. Ideal for lifting, aligning, moving, and fixing applications. Suitable for DIY users, door and window installers, and essential for installing windows, shutters, and even heavy doors.