Box cardboard dry pastels with 36 colours. Dry pastel is made up of very finely ground pure pigments and a natural and water soluble binder. For the degraded nuances it is added that a mineral product which goes increasing and which aims towards the colored white. The outstanding brightness of this pastel arises from the nature of the pigment and used natural . The process of cylindrical pastel not compressed the pulp and pastels dry naturally in free air.