MATERIALS Back and seat as one piece construction is made of polyurethane foam injection moulded over metal frame which are supported by a steel springs . This gives onsistent shape quality and structural longevity. Upholstery Artificial leather, Natural leather, Fabrics 4way metal tubular profile leg without castor with swievel system, office leg with five star metal die-cast and castor- seat height adjustment Shiny chrome, Matt chrome, Electrostatic Powder Coated Seat Depth Seat Height