Make the most of the workday while sitting in this ergonomic office chair. The height-adjustable chair features tilt control and casters to help you get in the right position. The mid-back office chair features lumbar support and a contoured seat for comfort. Overall Dimensions: 45-3/4H x 27-3/4W x 29D. Ergonomic design allows for comfort throughout the day. Recommended for professional use 8-10 hours per day. Weight capacity tested to support 275 lb. Built-in lumbar support. Thick, padded leather contoured seat and back. Pneumatic seat-height adjustment. 2-to-1 Synchro tilt control features adjustable tilt tension. Heavy-duty aluminum base is designed with oversized dual-wheel carpet casters. Assembly required. Backed by the manufacturers lifetime limited warranty.