Comfortable office chair: Large seat (51 cm wide x 50 cm deep) upholstered with high-density foam for optimal seating comfort. The seat retains its shape even after prolonged use. Ergonomically shaped backrest (65 cm high) with breathable mesh protection supports the spine and effectively prevents back pain. Padded headrest provides extra comfort. Adjustable ergonomic chair: Padded armrests (height from seat surface 22 cm) with mesh cover ensure necessary shoulder relief and can be folded back, allowing you to work close to a table. The office chair can easily be slid under the table. The seat height is infinitely adjustable (45–54.5 cm). Stable tilt mechanism allows you to lean back during strenuous work. Suitable for a maximum body height of 175 cm. Stable and durable office chair: Stability is provided by a steel base (diameter 66 cm) with 5 support points. Safe gas lift (TÜV Rheinland: DIN4550 Class 3; Certificate holders: suppliers). Max load capacity: 150 kg. Quiet mobility and versatile use: High-quality double castors with polyurethane coating provide quiet mobility and are suitable for many floors. This swivel chair fits perfectly in the office, conference room, or home study room. Easy assembly: Numbered accessories are packaged in blister packs to prevent loss. Thanks to well-illustrated instructions, assembly can be carried out quickly and easily. Includes tools, a spare roller, and additional screws. Specifications: Material: Backrest cover: polyester mesh Seat cover: Polyester fabric 5-star base: Steel Armrest bar: metal Size: Overall height: 117–126.5 cm Overall width: 64 cm Overall depth: 55 cm Seat height: 45-54.5 cm Seat width: 51 cm Seat depth: 50 cm Armrest height from seat: 22 cm Backrest height: 65 cm Wheel diameter: 50 mm Wheel diameter: 11 mm Book diameter: 66 cm Colour: black Gross weight: 15kg Maximum load capacity: 150kg Package Contents: 1 x Mesh Chair 1 x Hardware Bag 1 x Instruction (EN, DE, FR, ES, IT)