LAD Workspaces® Matrix High Back Office Chair Adjustable Arms and Head Rest with Steel Base (Black)About this item High Back Mesh chair; Height Adjustable Arm Rest, Adjustable Headrest chrome coated steel base, Adjustable Lumbar Support with synchro push back Mechanism mechanism Elegant mesh fabric upholstery moulded seat Minimum Seat Height 18 inches, Maximum Seat Height 23 Inch from the floor, Seat Size 19 by 19 Inch Back Style: Solid Back; Item Type Name: Fiber Base High Back Office Chair; Material Type: Fiber; Frame Material Type: Alloy Steel;