Extra high back fabric operator chair Oval shaped back design with high density seat and back foam for maximum user comfort Asynchro mechanism provides free floating back action, lockable seat and back Features gas height adjustment, back rake adjustment, back height adjustment and independent seat tilt adjustment Choice of nylon or chrome base with optional seat slide and pump up lumbar support also available Supplied without arms Also available with fixed, height adjustable or folding arms Upholstered in a range of fabrics and colours from Camira (5 times Queen\'s Award Winner) 5 year warranty