Air suspended comfort seat with mechanical lumbar support, suspension travel 100mm, manual weight adjustment (50kg - 130kg), air supported combined stepless height adjustment 80mm, wide seat cushion (480mm), height and angle adjustable armrests (65mm x 270mm), fore/aft isolator, adjustable backrest angle. GRAMMER part number 1248637 Note***** Head rest shown in picture is not included or stocked in NZ**** Grammer part number for head rest/backrest extension is 140659