We have all been deeply touched by this stool Mezzadro, true icon of design and working of Achille and Pier Giacomo Castiglioni. The seat is the seat of a tractor. Homage to Marcel Duchamp, Mezzadro is a "ready-made" created from existing objects but with a different purpose. It is part of the collections of the greatest museums in the world: the MOMA, La Triennale di Milano, the Vitra Design Museum. It is proposed with a seat painted red, orange, white or aluminum.