Lean into the soothing lumbar support provided by the breathable back on this task chair. This chair features back height adjustment to accommodate users of many different heights. Experience arm support where you need it with the height-adjustable arms. With one-touch pneumatic seat height adjustment, you can change the seat's height without hassle.Move this chair from place to place smoothly with its dual wheel carpet casters. With a coal black color, the chair fits in with other professional furniture. The heavy-duty nylon base provides strength for complete weight support of up to 250 pounds.Coal black color for professional environmentsLumbar support provided by a breathable back for comfortIncludes one-touch pneumatic seat height adjustment for simplicityBack height is adjustableIncludes multi-task control for efficiencyPadded arms are height adjustable to suit preferencesStrong nylon base for durabilityFeatures dual wheel carpet casters for smooth transportMade of polyester, metal, plastic, nylon and foamHolds up to 250 poundsMeasures 39.75"H, 25.75"W and 25"DSeat measures 18.5"H, 19.5"W and 2.5"TBack measures 16.5"H and 17.5"WSeat is 18"HModel 29024 Assembly required.