Extended Length: 25.4cm / 10'; Compressed Length: 16.3cm / 6.42'. Pressure 51Lbs/227N per gas strut. The lift supports struts installation in the car to support the heavy cover. Made of metal material for long lasting use. Good characteristic, stable performance. Brand New. Easy to install with simple hand tools in just few minutes, no special tools required for installation. This gas spring is universal, which fits for RV, car, boat, bus and other vehicles. Good performance. It is used on the car to support the hood that you can repair your engine. Please make sure the gas spring's support weight before ordering.