Feature: Easy to install with simple hand tools in just few minutes. Your hydraulic support rod are powerful, prop open medium to heavy object such as a car lid or barrier for hands free convenience. The lift supports struts fits for most of cars. Specification: Color: Silver Tone Material: Metal Thread Size: M8x1.25 Extended Length: 50cm / 19.7" Compressed Length: 30cm / 11.81" Total Length: 51cm / 20.08" Rod Length: 20cm / 7.87" Housing Diameter: 18mm / 0.71" Connecting Rod Diameter: 8mm / 0.31" Bracket Hole Diameter (Round): 8mm / 0.31" Bracket Hole Size (Oval): 10x8mm / 0.39"x0.31"(L*W) Bracket Size: 61x25x40mm / 2.40"x0.98"x1.57"(L*W*H) Force: 200N/20KG Note:Please allow 1-10mm differs due to manual measurement, thanks.Package Include: 2 x Hydraulic Support Rod 4 x Mounting Brackets 4 x Nuts