STRONG ARM GAS CHARGED TAILGATE LIFT SUPPORT, SOLD INDIVIDUALLY -- 8.15 in. stroke length; 14.23 in. compressed length; 22.38 in. extended length; 0.75 in. body diameter; 0.31 in. shaft diameter; Includes all necessary hardware; With off-set blade for shaft connection and steel ball socket for body connection; Made from a chromium-plated hardened steel rod and glossy finish heavy gauge steel body; Designed with self-cleaning orifice that keeps the piston area free of contaminants, reduces clogging, and prevents lock up; Features a sealing system that uses a Triple-Lobe rubber seal and rubber O-ring piston seal that withstand high pressure, vibration, side-loading, and misalignment; Provided with nitrogen gas charge up to 2500 psi that does not affect any of the internal components and glycol fluid lubricant to slow down the movement prior to full open; With 2-year Strong Arm limited warranty.