Whether you're powering through your workday or just browsing the internet, this executive swivel office chair is just what you need. Featuring black fabric upholstery, built-in lumbar support and a contoured back and seat, this high back chair is perfect for your office or home office. High back office chairs have backs extending to the upper back for greater support. The high back design relieves tension in the lower back, preventing long term strain. The contoured seat dissipates pressure points for greater comfort. The tilt lock mechanism rocks/tilts the chair and locks in an upright position while the tilt tension adjustment knob adjusts the chair's backward tilt resistance. Chair easily swivels 360 degrees to get the maximum use of your workspace without strain. The pneumatic adjustment lever will allow you to easily adjust the seat to your desired height.