Adjustable Back Tilt Control - balance spring adjusts to accommodate a wide variety of body sizes and provides a healthful change of hip angle Forward Position Lock - handle located on left under seat - back tilt action can be locked in the forward, upright position for task-oriented work without losing the passive ergonomic support of the knitted back Gas Lift Height Adjustment - handle located on right under seat - allows for correct leg positioning and height to work surface Seat Depth Adjustment - knob located under seat at back - adjusts 2" to proper depth of user s legs with a one time setting allowed for proper support of lower torso and legs Arms are attached to frame and not the seat which allows for the back to move independently of the seat Synchro-Tilt is standard allowing for a 2-to-1 ratio movement between back and seat