The properties of the model: Faux Leather upholstery/TW Fabric Plastic armrests with soft pads upholstered in fabric Swing mechanism With the ability to fix the chair in any position. Seat height adjustment Plastic crosspiece with decorative plastic elements Gasparon class 3 standard Germany DIN 4550 Rollers Standard BIFMA 5,1 (USA). Stem diameter 11 mm. Non-Monolithic Frame The recommended maximum load is 120 kg. Warranty period 2 years