Castor/ Cover/ Tube caps:Polypropylene plasticSeat and back frame:Steel, Epoxy/polyester powder coating, Layer-glued wood veneerSeat pad:Non-woven polypropyleneBack foam:Polyurethane foam 30 kg/cu.m.Seat foam:Polyurethane foam 35 kg/cu.m.Mounting plate/ Star base hub/ Star base leg:Steel, Epoxy/polyester powder coatingThreaded column:Polyamide plastic, Acetal plasticFabric:100% polyester (min. 90% recycled)Total composition:100% polyester