Gas Lift Cylinder, Class 4 Piston Office Chair Gaslift 1000LBS(450kg), Heavy Duty Pneumatic Shock for Office Gaming Boss Chairs, Total Length 300-450mm, Black

Huiguli Office Chair Cylinder Replacement, Heavy-Duty Class 4 Hydraulic Pneumatic Gas Lift Cylinder (Supports 1000 lbs), Universal Size Chair Piston, Fits Most Chairs, Office Chair Parts

9 Inches to 13 Inches Office Chair Cylinder Replacement, 4" Stroke, Heavy Duty 1000lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4, Black

MySit Gas Lift Cylinder Removal Tools 28mm/1.1-Inch, Removal Tools Sets for Replace Office Chair Cylinder, Fix Sinking Office Chair Stainless Steel Chair Saver for Stop Sinking - 2 Pieces