Advanced comfort controls and seat slide put you in control of your work comfort. Arm height and width adjusts to your comfort. Asynchronous control mechanism with seat slider offers a full range of reclining positions. Height- and width-adjustable arms provide a custom fit. Adjustable seat depth adapts to various users. Hard casters roll quietly and effortlessly. Tilt tension controls the rate and ease of recline. Infinite tilt lock allows the user to lock the back in virtually any position. 360-degree swivel provides freedom of movement in any direction. Pneumatic seat height adjustment moves the seat up and down to adapt to various body heights.