Using the GUS Modern Radius Task Chair is easy. First, adjust the height of the chair using the gas lift mechanism to your comfortable level. You can swivel the chair 360 degrees smoothly to reach different areas of your workspace. Decide whether you want to use the rolling castors for easy movement or the stationary feet for stability, and convert between them as needed. When it comes to maintenance, regularly wipe the chair with a soft, dry cloth to keep it clean. Avoid using harsh chemicals or abrasive materials that could damage the upholstery or the powder - coated steel. Since the chair is oversized and non - returnable, handle it with care during installation and use. If you notice any damages or defects, contact us right away, and we'll arrange for a replacement.