A classic armchair on a steel mono-support with perforation, steel sheet not less than 6 mm. Sides MDF / enamel, armrests bent-glued birch plywood 1 grade, sapele veneer. As in all other chairs of the Robustino line, the back and seat are heavy-duty with an integrated polypropylene frame. The backrest and seat bottom are finished in first grade birch plywood covered with natural veneer.