This multifunctional office chair features a triple paddle control to adjust the seat height, back angle and tilt lock. This upholstered chair offers great comfort benefits when having to sit for long periods at a time. Having the support of an ergonomic office chair may help promote good posture and reduce future back problems or pain. High back office chairs extend to the upper back for greater support and relieve tension in the lower back, preventing long term strain. The locking back angle adjustment lever changes the angle of your torso to reduce disc pressure while the back height adjustment knob positions the lumbar support to reduce back pain. The multi-tilt lock mechanism rocks/tilts and locks the chair in infinite positions. 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. This task chair lets you power through your day and feel great doing it.