Height, Width and Feet

• Don't let your feet dangle in space or to have your knees under your chin. Use the flat lever on the right side of the chair to adjust its height so that your feet are flat on the floor. If the chair is a model equipped with a footrest (called a "Footring"), you can raise or lower the Footring by first setting your feet on the floor, then turning the long-stemmed knob on the left side of the chair. Turn it forward to raise the Footring and backward to lower the Footring.
  
  You can sit bolt upright or more casually if you adjust the back of the chair with the long-handled knob on the right side of the chair. To sit more upright, turn the knob toward the front of the chair while seated in the chair; to sit less upright, turn the knob toward the rear of the chair.
  
  The amount of forward tilt of the chair is adjusted by leaning back and lifting the front lever on the left side of the seat and leaning forward. Push the lever down to return the chair to the horizontal position.
  
  Your arms don't have to rest on the ground either. You can adjust the height of the chair arms by lifting the lever on the base of the chair arm support, and raise or lower the arm support as desired. After making the adjustment, lower the lever. You can also adjust the angle of the of the chair arms individually by gripping the front of the arm pads and swinging the front of the arm to the left or right.
  
  

Limiting Rocking Motion

• Sitting in the Aeron chair shouldn't be an exercise in slapstick comedy; you can limit how far back you rock so that you don't fall over backwards. All you have to do is lean back in the chair as far as you want the chair to rock, then pull up on the rear lever on the left side of the seat.
  
  If you decide that you want to stop limiting how far back the chair rocks, lean forward and press down on the rear lever on the left side of the seat. You can rock as far back as you want, even if you end up on the floor. Of course, if you simply want to rock a little bit farther back, you have to release the limit by pressing down on the rear lever, leaning back to the new position and lifting up on the rear lever.
  
  

Posture and Lumbar Support

• The Aeron lumbar support is a pad in a track; pushing on both sides of the pad at the same time allows you to slide it up and down in the track to place it exactly where you need support.
  
  The Posture-Fit adjustment supports your spine in its natural alignment and is controlled by the knob on the right side of the chair. Start adjusting this support by sitting in the chair and turning the knob as far forward as it will go. When the knob stops, turn it toward the back of the chair until it feels just right.