Holds 6 different pencils + 1 flat ruler N°1 : Rudy is about construction! His pencil is the one of a mason, able to write directly on concrete. (3B)
N°2 : Renzo is about requirement, precision and an 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 is. His pencil is thick and soft for smooth lines. (2B)
N°4 : Zaha is about angles and curved lines. Her pencil only express itself on a dark medium; its pencil is white. 
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.