This chair provides lumbar support Width and height adjustable arms allow you to rest your forearms comfortably Weight is rated up to 250 lbs. Width and height adjustable arms allow you to rest your forearms comfortably Synchro-tilt mechanism for a smooth recline with tilt tension and tilt lock for secure support Sink into plush comfort with this Tempur-Pedic office chair. A mesh back offers ventilation to keep you cool throughout extended workdays, while the thick Tempur foam padding provides added cushioning and support for your frame. The synchro-tilt technology, tilt tension, and tilt lock create a perfect angle of recline for better alignment, so you can recline easily whenever you need to sit back and think about your next business move. Use the pneumatic seat-height adjustment lever to move the seat up or down for a more customized configuration. With a durable nylon base and rolling casters, this Tempur-Pedic office chair is easy to move from your office to the conference room and back again.