Feature:Easy to install the gas springs with simple hand tools in just few minutes.With easy fittings to any surface, just attach and lift, your gas spring lifts and hold the weight objects.The gas springs are powerful, can support small,medium to heavy object. Easy to lift and support, smooth use, bringing convenience to your work.This gas struts are universal, which fits for RV window, cabinet door cover, storage box cover, boat hatch cover, car hood and trunk, pickup truck tonneau cover, tailer cover, bus luggage door, motorcycle seat cover and so on.Specifiction:Extended Length: 400mm/15.75"Compressed Length: 240mm/9.45"Force: 112lb/500N/50kgColor: BlackMaterial: Carbon SteelNote:If the temperature is lower than minus 20 degrees, the oil density of the gas spring turns high (frozen) and it is difficult to press down.Please allow 0.5mm differences due to manual measurement.Package Included:2 Pcs Gas Struts