VEVOR Office Chair with Adjustable Lumbar Support, High Back Ergonomic Desk Chair with Adjustable Headrest, Ergonomic Office Chair Backrest with 2D Ar
4 in/60 mm,Cushion Material: Elastic Fabric + Cotton,Item Model Number: W-227C,Lumbar Support Size: 10.6 in/40 mm,Cylinder Stroke: 3 in/75 mm,Headrest Lifting Height: 2.VEVOR Office Chair with Adjustable Lumbar Support, High Back Ergonomic Desk Chair with Adjustable Headrest, Ergonomic Office Chair Backrest with 2D Armrest, Computer Chair for Home, OfficeThickened & Enlarged CushionTilt & Rocking FunctionFree Adjustable Lumbar Support HeadrestWin in the DetailsVarious ApplicationHassle-free InstallationCaster Diameter: 2.