Use this office chair to stay comfortable while you attack the to do list of yours. The chair is adaptable to suit users of various sizes, making it a great option for shared spaces. Overall Dimensions 39 1/4 to 43 H x 26 W x 27 D. Weight capacity tested to help 250 lb. Lumbar feature supports your lower again and enhances the natural curve of the spine of yours. Waterfall seat cushion slopes slightly downward to help reduce stress on the legs of yours. Seat and returned feature fire retardant foam to pad the entire body of yours. Polyurethane and leathersoft combines natural leather for even and durable upholstery. Simple changes for different people are allowed by pneumatic seat-height adjustment. Tilt a tilt and tension adjustment lock mechanism let you change the angle. 5 star chrome base with dual wheel casters for sleek rolling. Meets as well as surpasses ANSI/BIFMA performance standards. Assembly required.