Solve is the single seating solution that helps a variety of users achieve optimal comfort. This mid-back task chair features an upholstered back stretched over the breakthrough ReActiv material that provides enhanced support above and beyond ilira-stretch mesh. The synchronized seat and back provide proper balance, alignment and lumbar support, and can be adjusted with a single lever. Arms adjust from 7-1/2" to 11-1/2" in height and 17-3/8" to 20-1/8" in width. Functions include pneumatic seat-height adjustment, seat-glide mechanism, 360-degree swivel, dual-action synchro tilt, tilt tension and tilt lock. 26-1/2" diameter, five-star base is equipped with 2-4/11" dual-wheeled casters for easy chair movement. Weight capacity is 300 lb.