High back operators chair with permanent contact mechanism and inflatable lumbar support. Height adjustable backrest and Gas height adjustment. Height adjustable arms. Deep moulded seat and back foam. Fire retardant. Accepts body weight up to 150kg/23 stone. Backrest: H590 x W470mm - Seat: W490 x D460mm. Height from 490 to 610mm. SATRA tested to BS EN 1335.