DOZYANT 6" Long Stroke Office Chair Gas Lift Cylinder Replacement,Hydraulic Pneumatic Shock Piston Heavy Duty (450 lbs) for Tall Person Universal Size Fits Most Executive Chairs, Highest End Class 4

Additional Details from the Manufacturer

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More features

• 6" STROKE FOR ADJUSTING CHAIR HEIGHT: Minimum length: 11.2 inches; maximum length when fully extended: 17.2 inches; adjustable range: 6 inches
• HEAVY DUTY Gas lift cylinder that holds great weights - tall center support column of the chair. Holds up to 450 lbs on most office, executive and computer chairs. Highest End Class 4 gas cylinder on market.
• STANDARD CYLINDER DIAMETER: Outer cylinder: 2 inches, Inner cylinder: 1. 1 inches. Please confirm the measurement before ordering.
• SMOOTH & NOISELESS: Full 360 degree rotation, smooth and noiseless movements to all directions
• EASY INSTALLATION : Can be installed easily with no additional screws required.