For specialists, a range of blacks from hardest to softest. Pencils with the most complete range of graphite leads. Each pencil is varnished in a colour that precisely depicts the hardness and depth of the black.

Contents : 6 graphite pencils with different hardnesses (9B, 7B, 5B, 3B, HB, 2H)
Applications :

9B, 7B, 5B, 3B : Extra fine graphite pencils to allow uniform shading of large areas and a regular, intense stroke.
HB : Extra-fine graphite for hatching and superimposing.
2H : Extra-fine pencil for intense, regular, fine and extra fine lines (technical drawing, scientific illustration, etc.)