Blue Mesh Chair with Elastic Mesh and Lumbar Support

1. adjustable seat height pneumatic/one-touch2. adjustable tilt tension: yes3. tilt lock: yes4. adjustable headrest: yes, height and angle5. adjustable tilt angle: yes6. lumbar support: yes7. waterfall seat cushion: yes8. adjustable arm height: yes9. adjustable arm width: no10. assembly required: yes11. weight capacity tested to 250 lb