The high back and smooth surface provide a restful yet elegant office chair built to satisfy.The built in outlined headrest and top stitching adds simple elegance. Turn the tilt tension adjustment knob to increase or decrease the amount of force needed to rock or recline. Lock the seat in place with the tilt lock mechanism. Raise and lower your seat height using the pneumatic seat height adjustment lever, conveniently located under the seat. The 360 degree swivel function allow you to maximize your immediate workspace. The tilt tension/lock, pneumatic lever, caster wheels and high chrome base makes this chair functional, stylish and practical all at once.The extended seat office chair will make you feel right at home while working on the tasks at hand in any office setting whether it's at home or anywhere you decide. [BT-90509H-DGY-F-GG]