220/SY operator chair on five star naylon base with polypropylene castors. Ergonomically designed. The chair has a medium height back. The back is dressed with black mesh. The seat is upholstered with fabric which is dust-proof / oil - proof / water proof height adjustment by means of 13 cm gas lift. Synchronised-tilting mechanism with four locking positions. Safety anti-shock system. Adjustable arms.