Description: Ligne Roset Petrus is a piston-operated stool with a rigid polyurethane shell which is moulded then lacquered. The stool base & leg are finished in a the same lacquer as the Petrus seat. Designer: Claudio Dondoli & Marco Pocci: Ligne Roset’s Petrus stool is designed by Claudio Dondoli & Marco Pocci. They met at the Faculty of Architecture, Florence. In 1983, having shared not only their studies but also an intense artistic & theatrical experience, they founded their own design agency at Colle Val D’ Elsa, against the romantic backdrop of the Tuscan countryside around Siena. Christened Archirivolto, this agency has concerned itself solely with industrial design since 1989. They maintain that today, true innovation is based on the use of technology & materials. Technology serves not to create an image, but to give service to the client: to be of genuine quality a good design-led product must therefore be beautiful, effective & comfortable. Besides Ligne Roset & Cinna, they collaborate with Bonaldo, Desalto & Fasem.