Seat shell: Total composition: 100 % polyester Seat: Steel, Steel Seat foam: High resilient polyurethane foam (cold foam). Star base with 5 legs and casters: Star base: Aluminum, Epoxy/polyester powder coating Casters: Polypropylene, Synthetic rubber Lamella seat lock: Steel, Steel, Epoxy/polyester powder coating Armrest: Aluminum, Epoxy/polyester powder coating - Product dimensions Tested for: 243 lb Width: 26 3/4 " Depth: 26 3/4 " Max. height: 41 " Seat width: 20 7/8 " Seat depth: 16 1/8 " Min. seat height: 16 7/8 " Max. seat height: 20 7/8 " Tested for: 110 kg Width: 68 cm Depth: 68 cm Max. height: 104 cm Seat width: 53 cm Seat depth: 41 cm Min. seat height: 43 cm Max. seat height: 53 cm - Good to know This professional desk chair has been tested for office use and meets the requirements for safety, durability and stability set forth in the following standards: EN 1335-2 and ANSI/BIFMA x5.1-2011. Complies with California TB117-2013 flammability requirements. Do not remove the cover to clean
