SAKURA-Cray-Pas Expressionalist Oil Pastels. Cray-Pas Expressionist oil pastels are ideal for high school and college art students, seasoned artists, as well as hobbyists. This extra-fine quality assortment provides bright, vivid colors and good lightfastness. Perfect for every artist, it is suitable for paper, cardboard, canvas, wood and more. Smooth and easy to apply. This package contains 36 colours: 10mmx71mm each. Conforms to ASTM D4236.