Description Chair Capacity: 180kg.Composition: upholstered seat and back, nylon base, upholstered seat and back, aluminum base (2322323) mid back and high back models.Seat Width: 520mm.Seat Depth: 490mm.Back Height: 445mm (2285966, 2285964, 2285967, 2285965) 535mm (2322323, 2285962, 2285963, 2285961).Indicative seating time: 8+ hours, 16+ Hours (2322323) Mid Back and High Back models (8+ hrs) High Back 24/7 model (8+ hrs - 10 yr guarantee) 16+ / 24/7 hrs use (2yr guarantee).10 years (excluding upholstery) Superior Gas Lift Lifetime Guarantee.