Features High Adjustable Backrest with Integrated Headrest Left Hand Side Control Functions Adjustable Double Locking Slide Rails Adjustable Mechanical Lumbar 30 Degree Seat Tilt Adjustment 90mm (3.5433”) Suspension Stroke Adjustable Seat Cushion Length 60mm (2.36”) Document Map Pocket Heavy Duty Direct Air Suspension Left & Right Adjustable Armrests Cloth, Vinyl, or Leather Upholstery Options Manual Air Height Adjustable with Memory High Base Options HB - High Base: 109 mm (~4 9/32”) 12V Seat & Back Cushion Heater Kit - 830286 Contact One Of Our Seating Specialists For More Details Models Black Cloth - 590100HB Black Vinyl - 590102HB Black Leather - 590103HB