Executive chair “CLASSIC”: self-braking castors ø 50 mm; 5 star die-cast aluminum base, polished; adjustable in height gas-lift; inner frame made in steel with elastic belts; outer frame in chromed steel tube; knee tilting mechanism lockable in 4 positions, body-weight adjustment and anti-shock system; seat and back made with shaped polyurethane foams, CFC free; steel tube arms, chromed.