Diane Townsend Terrages pastels were originally developed to meet the desires of pastel painter Wolf Kahn. Each contains finely ground pumice stone that plows into the paper, creating a toothy surface on which to transfer complex layers of color. - Townsend Terrages Pastel Set - Landscape Colors A, Set of 12Townsend Artist Pastel, SET 12 LANDSCAPE - Includes Burnt Sienna 99, Green Oxide 155, Hansa Yellow 175, Olive Green 148, Phthalo Blue 5, Phthalo Green 142, Red Oxide 88, Toluidine Red 176, Tuscan Red Orange 58, Ultramarine Blue 19, Ultramarine Blue 21, and Yellow Green 159.