High back ergonomic operator chair with pump up air lumbar support Conforms to BS 1335 (2000) Part 2 Deep padded sculpted back and seat with waterfall front Features gas height adjustment and back height adjustment PCB mechanism means that backrest angle can be fixed or set to free float and move in permanent contact with the users back Supplied with height adjustable arms Also available without arms or with fixed arms or folding arms Black nylon base with easy glide castors Choice of colour 2 year warranty