with armrests, black, with armrests, black, without head rest

AERO office chair, with armrests, black, without head rest. Supplied = flat pack. Model = without head rest. Seat colour = black. Fittings = lumbar support. Frame colour = black. Seat mechanism = synchronous mechanism. Frame design = with castors. Seat height = 455 - 555 mm. Type of arm rests = with arm rests. Back rest height = 980 - 1080 mm. Seat depth = 515 mm. Seat width = 470 mm. Conforms to = DIN EN 1335. Seat material = fabric. Period of use/day = 8 hours/day. Product type = office swivel chairs. Customs tariff number = 94013900. Country of origin = IND. Gross weight = 19.5 kg. Weight = 15.5 kg. Larger seat depth. Adjustable lumbar support 80 mm. One button front pivot tilt mechanism, locks in 4 positions with anti-shock mechanism. Standard: DIN EN 1335. Mesh backrest. The office swivel chairs of the AERO series offer versatile adjustment options for an individual sitting position at the modern workplace. The one-button front-pivot tilt mechanism is lockable in 4 positions and is equipped with an anti-shock mechanism, which allows for safe tilt adjustment. The 8-stage height-adjustable arm rests offer support for the arms and relieve the shoulders. The greater seat depth, together with the adjustable lumbar support (80 mm), ensures better adaptation to different body sizes and sitting postures. The back rest height is adjustable between 455 and 555 mm. The chair features a synchronous mechanism, which ensures a coordinated movement of the seat and back rest. Arm rests and universal castors are integrated to increase mobility and adaptability at the workplace. The DIN standard EN 1335 for office chairs: The DIN EN 1335 is a standard that specifies dimensions, safety requirements, and safety tests for office chairs, such as the adjustability of seat height, seat depth, and back rest. The standard aims to ensure that office work chairs comply with ergonomic and safety requirements to guarantee a healthy and safe working environment.