The specially smooth wax-based lead. Polychromos artists’ color pencils have thick leads, 3.8mm in diameter, which are waterproof and non-smudge. The smooth flow of strong color makes them a pleasure to use. They are the ideal medium for colored drawings. Your imagination knows no bound when you use polychromos artists’ colored pencils. The wide range of bright colors covers practically every need; drawings will not fade. The pure pigments also ensure high covering power. Thanks to their excellent covering power, polychromos artists’ color pencils can be used on a variety of materials: paper, card; wood or even fabrics. In this set is the discontinued black soft pencil # 9201-099. Which was discontinued over 20 years ago and very rare.