Ergonomic synchronized chair upholstered with fabric or leather according to demand with high back for managerial use, with medium back for semi-executive and operating, with steel frame for visitors and meetings .Seat: beech wood with polyurethane cold injected high-density (60 kg-m 3).Back: Patented ergonomic fit for each body, made of reinforced polypropylene, recyclable and height adjustable with up & down mechanism + outer carter of polypropylene with an aesthetic function and to protect upholstery. Mechanism: SYNCRO mechanism with anti shock , 5regulations and tension control Note: Textiles and colors available at our showroom.