Feature: Force: 100lbs/445N(Per Strut), 2 struts is 200 lbs/890N. The applicable weight of a single lift support strut is 85~115 lbs. Please check carefully the pressure and length before placing an order. Easy Installation: We have installation quick guide for you. If you have question about the strut force or any other question, please tell us before buying, we will provide you with professional advice. Note: Do not compress them by hands before installation, the struts could only be compressed after installing successfully. After installation, the lid/cover would be opened or closed smoothly. Working temperature: -25 Degree Celsius—70 Degree Celsius. Specification: Material: Metal Color: Black Pressure: 445N/100Lbs Extended Length: 50cm/ 20" Compressed Length: 30.7cm/ 12.09" Total Length: 51.5cm / 20.28" Rod Length: 19.3cm / 7.6" Housing Diameter: 18mm / 0.71" Connecting Rod Diameter: 8mm / 0.31" Thread Size: M8x1.25 Gasket Hole Diameter: 8mm / 0.31" Gasket Hole Size: 10x8mm / 0.39"x0.31"(L*W) Gasket Size: 6.5x2.5x4.1cm / 2.56"x0.98"x1.61"(L*W*H) Package Included: 2 x Gas Struts 4 x Gaskets 4 x Nuts