Stabilo's soft, waxy leads mark on virtually any surface. This is not an artist coloured pencil, for drawing and sketching, but rather a coloured marking pencil. Use it for writing in colour on paper and other surfaces, even difficult surfaces like plastic, film and mylar. It is also useful for correcting drafts and proofs, or marking layouts. Will wipe off easy with a wet cloth. This pencil is pre-sharpened.