MRC Oscar Ergonomic Mesh High Back Office Chair Auto Adjust Lumbar Support, 3D Armrests, Back Height Adjust, Multi-Lock with seat Slide, Aluminium Base with 3 Years Warranty Pre Assembled (Black)

MRC Oscar Ergonomic Office Chair, Mesh High Back Home Office Computer Chair with Adjustable Lumbar Support, 3D Armrests, Multi-Tilt Lock Mechanism & Strong Aluminium Base (Black)

Omyoffice Office Chair Gas Lift Cylinder-Office Chair Replacement Parts,Universal Size Fits Most Chairs,Heavy Duty Gas Lift Hydraulic/Pneumatic Piston For Office Chair,Black - Alloy Steel

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