The Pitt® Pastel Pencils contain a high level of pigment with excellent lightfastness. They are wax and oil-free, and are perfectly suited for fine and elaborate details, ideal for figure drawing and fine filigree work. Just like the Polychromos® Pastel Crayons they can be easily smudged to create fine color transitions. Only minimal fixing is required, ensuring that the pastel drawings retain their vividness of color.