Faber Castell Polychromos Pencils are a professional quality coloured pencil, which have soft waterproof leads. These pencils contain superior pigments of unsurpassed lightfastness and colour brilliance. The oil base makes them suitable for work a wide variety of surfaces and materials, which include all forms of paper, card or even fabrics and selected forms of plastic. Polychromos leads can be sharpened to a very fine point allowing them to be used on fine detail as well as cover large areas with colour.