10" Gas Spring 10lb - Black NitrateFeatures:Black Nitrate Gas SpringExt. Length: 10"Comp. Length: 7"Rod Dia.: 8mmTube Dia.: 18mmP1 Force: 10*Gas Spring bodies are constructed of heavy-duty steel coated with heat-cured black nitrate paint*O-ring insures proper sealing to force oil toward the orifice piston*Hydraulic fluid specially formulated to provide end of travel damping*Piston assembly provides precise control during the extension