Parentesi Suspension LightBorne out of a 1971 collaboration between Achille Castiglioni and Pio Manz, the Parentesi was named for the parenthesis symbola visual reference to the nickel plated shaped tube that lives on a floor to ceiling steel cable. The steel cable can reach up to 157", and the tube allows the lamp head to move vertically along the cable to achieve a customized height. The head fixture is injection molded black elastomer, equipped with a switch. The Parentesi