VEVOR Office Chair Base Replacement, 28", 2500 lbs Static Load, Heavy Duty Universal Computer Desk Chair Stool Base Part with 5 Casters and Reinforced Legs, Desk Chair Base Replacement, Black + Red

VEVOR Heavy Duty Office Chair Base Replacement, 28" with 5 Casters, Reinforced Legs, 2500 lbs Static Load, Black + Red

HOSALI Office Chair Cylinder Replacement,Heavy-Duty Gas Lift Cylinder Fits Most Chairs,Highest End Class 4 Hydraulic Pneumatic Piston, Universal Size

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