This is a fully loaded Herman Miller Aeron Chair – Size B. Posture Fit adjustable lumbar support. Atlas adjustable headrest (height / angle / depth). Forward / back seat tilt w/ tension adjustment and tilt limiters. Seat height adjustment. Adjustable armrests (height / angle). Please note that there is some minor cosmetic damage to the sides of the replaceable armrest pads and some minor scratches on the aluminum frame.