The Space VeraFlex series task chair features: / Breathable Charcoal VeraFlex back with built-in lumbar support / Thick padded Charcoal VeraFlex fabric seat / One touch pneumatic seat height adjustment / 2-to-1 synchro tilt control with adjustable tilt tension / Two way adjustable arms with PU pads / Heavy duty angled nylon base with oversized dual wheel carpet casters