A: Adjustable Back Depth
For custom lumbar support. To adjust, turn knob left (counter-clockwise) to loosen. Move back in or out to desired depth, then turn knob to right (clockwise) to tighten.

B: Seat Height Adjustment
This lever activates the pneumatic cylinder. While seated, lift the lever to decrease the seat height. Release lever when seat reaches desired height. To raise the seat height, remove your weight from the chair and activate lever to increase seat height.