This set of 6 pencils & foldable scale ruler is an homage to great architects. It is one of our bestsellers since the very beginning, and comes as a very elegant gift! N°1 : Rudy is about construction ! His pencil is the one of a mason, to write directly on concrete. (3B) N°2 : Renzo is about precision and eye for detail. His pencil is hard, precise and sharp. (2H) N°3 : Frank is about sketches and lines, curved and free as his mind. His pencil is thick and soft for smooth lines. (2B) N°4 : Zaha is about form and substance. Her pencil only express itself on a dark medium. (white pen) N°5 : Jean is about details, annotations, in red of course ! (red pen) N°6 : Tadao is about light. His line is delicate, poetic and airy. His pencil is blue. (blue pen) Material : certified wood for pencils and box in hard cardboard printed in hot stamping Made in Europe