Martin Furniture Commonwealth Executive Chair, Graphite Fabric High-back executive desk chair available in Black leather or Graphite fabric upholstery Thick contoured cushions with generous seat area; padded nylon loop arms Pneumatic gas lift features height adjustment, knee tilt control, and tilt lockout feature Heavy-duty nylon base with 5 casters for maximum stability and maneuverability Height adjusts from 46 to 49 inches high; 15-year limited warranty