MySit Heavy Duty 300 LBs Office Chair Tilt Mechanism Replacement Parts, 5.9'' x 10.15" Mounting Holes Tilt Control Mechanism

MASTERY MART Office Chair Base Replacement Heavy Duty, Metal Desk Chair Base Replacement Parts with Universal Gas Cylinder Hole and Casters Sockets, 2400+Lbs, Diameter 28", Matte Black

Omyoffice Office Chair Replacement Parts-28'' Heavy Duty Base Replacement(2200Lbs) - Desk Chair Reinforced Metal Leg,Universal Caster and Gas Cylinder Size

DOZYANT Gas Lift Cylinder Replacement,Hydraulic Pneumatic Shock Piston Heavy Duty (450 lbs) Universal Size Fits Most Executive Office Chairs, Highest End Class 4

Office Chair Cylinder Replacement, Heavy Duty Pneumatic Gas Lift Piston for All Office Chairs Including Gaming Chairs, Universal Fit, Black