Alera Brosna Series Mid-back Task Chair, Supports Up To 250 Lb, 18.15" To 21.77" Seat Height, Brown Seat-back, Brown BaseComfort and style combine when you add this faux leather chair to your workspace. The extended back, lumbar support, and plush padding enhance comfort. The soft, Luxura, leather look upholstery is easy to clean and adds a modern touch. Fully customizable pneumatic seat height adjustment lets you find the right position for your desk and screen height. Recline at the perfect angle for the task at hand with built in tilt tension and lock. Some assembly