The Air Cushions are made of thick TPU material, which is very durable and not easy to wear. The valve is completely sealed, will not leak, and can be used repeatedly. The airbags are very flat, with a thickness of only 1.5mm, and can be easily pushed into a small space. Without load, the cushion can be inflated to a maximum thickness of about 7cm. Air pump with a hand pump and a check valve, pumping and deflation is effortless, and you can deflate the cushion again air to adjust the appropriate height by pressing the buttonThe size of the mounting cushion is 16*16cm, the rubber hose is 25cm long, and the load is 200kg. One person can easily lift heavy objects, which provides great convenience for installation work. For lifting, aligning, moving, fixing, etc. Ideal for DIY enthusiasts, also very suitable for door and window fitters, Essential for installing windows, shutters, even heavy doorsThe size of the mounting bracket is 16 * 16 cm, the length of the pipe is 25 cm and the load capacity is 200 kg. Provide 2 cushions for better balance. A hose with a manual pump can be inflated quickly and easily, and you can deflate it again with a button. The use of valves also allows the load reduction to be well controlled. With a few pumping processes, the belt can lift a very heavy object a few centimeters without applying too much force. There is a small round hole in the corner of the mounting bracket, you can hang it. A little helper in the toolbox for lifting, aligning, moving, fixing, lifting furniture, hanging doors, washing machines , installing doors and windows, raising the door to align, locking the door into the frame for marking and final adjustment, assisting door assembly and disassembly, car repair, etc. They are sturdy and handle loads very well heavy. This saves time and labor costs.