With stylish design, customizable control & advanced features, Ignition Low-back Task Chair with a four-way stretch mesh back delivers more than the comfort everyone wants from an office chair. Synchro-tilt control mechanism with seat slider reclines the back & seat in the perfect ratio to give you a natural posture whether sitting upright or leaning back. Breathable, four-way stretch mesh back in a Fog color cradles your spine with natural lumbar support & increases airflow. Arms adjust in height & width while lumbar & cushioned fabric seat in black adjust in height to provide a custom fit. Other functions include pneumatic seat-height adjustment from 16-3/4" to 21-1/4", 360-degree swivel, tilt tension & tilt lock. Seat measures 18-1/2" wide x 16" deep. Back size is 17-1/2" wide x 19" high. Easy-to-assemble low-back chair holds up to 300 lb. and features a Designer White frame.