height adjustable arm rests, synchronous mechanism, height adjustable arm rests, synchronous mechanism, dark grey

Ricky office chair, height adjustable arm rests, synchronous mechanism, dark grey. Supplied = assembled. Seat colour = dark grey. Frame colour = silver. Frame material = aluminium. Seat mechanism = synchronous mechanism. Frame design = 5-star base. Seat height = 475 - 585 mm. Type of arm rests = height adjustable arm rests. Back rest height = 560 mm. Seat depth = 490 mm. Seat width = 480 mm. Shape of seat shell = contoured seat. Conforms to = DIN EN 1335. Back rest height with head rest = 640 mm. Seat material = fabric, leather. Design of castors = plastic. Max. load = 136 kg. Period of use/day = 8 hours/day. Product type = office swivel chairs. Customs tariff number = 94013900. Country of origin = CHN. Gross weight = 26.09 kg. Weight = 23.2 kg. Sustainability = BIFMA level certification. 4D adjustable armrests and air pump lumbar support. The height and angle of the natural leather head rest is adjustable. Multifunctional mechanism. Available in models with different colours. Height adjustable back rest. Adjustable seat depth. Standard: DIN EN 1335, EN 1021-1, EN 1021-2. Fabric cover: OTE Mark Series. The office chair is an important detail in your office environment that contributes to your well-being at work. The Ronna office chair is an office chair with durable black fabric upholstery (100,000 Martindale rubs) that is suitable for all types of offices. The chair is suitable for those who sit for a large part of the working day (8 hours/day). It is equipped with the ergonomic features that a chair needs so that you can sit comfortably even during longer periods of work. The office chair features balance-swing and synchronous mechanism, which increase the ergonomics of the chair for a more comfortable sitting position. Balance-swing means that the seat and back rest have a fixed setting that swings synchronously (coordinated), based on a tilting mechanism in the centre of the chair. The synchronous mechanism ensures that the back rest and the seat of the chair move synchronously when you lean back. While you lean back, the seat also tilts slightly forward, which helps your body to remain in an ergonomic position. This promotes better posture and reduces tension, especially during long periods of sitting. In other words, the chair has two different types of ergonomic functions in one. The chair is equipped as standard with castors for hard floors, height-adjustable back rest, adjustable seat depth, weight adjustment, seat tilt, leather headrests, and adjustable arm rests (4D) to ensure that you get the most ergonomic office chair possible. Approved according to EN 1335. The DIN standard EN 1335 for office chairs: The DIN EN 1335 is a standard that defines 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.