Product Details Back and seat as one-piece construction is made of polyurethane foam injection, molded over a metal frame which is supported by steel springs. This gives consistent shape quality and structural longevity. Leg Ø25mm tubular metal prole with plastic glides. Materials Upholstery Fabric, Leather, Artificial Leather. COM and COL options are also available. Leg Materials Metal Leg Finishes: Chrome, Electrostatic Powder Coating Colors