Arco Floor Lamp, designed in 1962 by Achille Castiglioni and Pier Giacomo Castiglioni for Flos. Featuring a Carrara marble base, a telescopic stem in satin-finished stainless steel, and an adjustable aluminum reflector, it is one of the most significant designs in the history of Italian lighting design. Designed to provide a suspended light source without the need for a ceiling fixture, it stands out for its minimalist construction and the instantly recognizable shape that has, over time, become an iconic symbol of 20th-century design.