Sennelier - Oil Pastel - Introductory - Set of 12 - First created in collaboration with Picasso in the 1940's, these ultra creamy pastels are rich in pigment, cover well, and have remarkable opacity and lightfastness. They can be thinned with turpentine and worked with a brush, are acid-free and can be applied to any surface. This set contains the following colors: Black (023), Delft Blue (203), Lemon Yellow (019), Permanent Intense Red (220), Burnt Umber (034), French Ultramarine Blue (237), Mandarin (200), White (001), Cinnabar Green Yellow (042), Green Medium (045), Pale Blue (006), and Yellow Ochre (026).