All Pitt Monochrome products have in common the traditional consistent high standards of quality: light-fast colours and the special binding agent which ensures high pigment density. Produced from a fine mixture of soot and charcoal. Compressed charcoal comes in four grades from extra soft to hard. It leaves a dense black mark, ideal for heightening shadows and for clear delineation. Pitt charcoal offers the deepest possible black and a soft stroke. Especially suitable for large areas.