Force: 44lbs/196N(Per Strut). It could hold open 44 lbs individually on any object such as a car lid, RV, which is universal. Length: Extended Length(Center-to-Center): 48cm / 19', Compressed Length(Center-to-Center): 27.7cm / 10.91'. Easy Installation: Easy to install with simple hand tools in just a few minutes, no special tools required for installation. If you have questions about the strut force or any other questions, please contact us before buying, we will provide you with professional advice. Note: Do not compress lift support by hands before installation, the gas struts could only be compressed after installing successfully. After installation, the lid/cover would be opened or closed smoothly. Working temperature: -25 Degree Celsius70 Degree Celsius. Package Included: 1 x Gas Struts