There are three sorts of Van Gogh pastels: soft pastels, oil pastels and carré pastels.
Thanks to their balanced combination of kaolin and pigment, the soft pastels are less likely to crumble and the colour transfer remains strikingly high; the 80 colours are available separately, but are also available in various assortment sets.
Van Gogh oil pastels are made of pigment with fats and waxes as binding agent.
Van Gogh carré pastels fall under the dry pastels category. They are square in shape and are made of pigment and various types of clay.