These pencils are made of premium quality materials and are highly pigmented. The mutual combination of various types of raw materials in recipes developed over the years and appropriate technology for modifying the mixture and methods of their formation creates the required qualities of drawing. These chalk pencils are excellent for detailed work, outlines, toning, colouring and various shading techniques. They are highly blend able. You can use them on smooth or rough paper. The rich pigment is perfect for deep shading. After finishing your drawing, we suggest that you apply fixative to avoid further smudging. Chalk Pencils colours: white, sepia, brown sepia and dark brown, Negro soft, medium and hard. Charcoal Pencils colours: black and white.