Sennelier uses only the purest pigments, mixed with minimal amounts of natural binders, in an exclusive formula that yields lightfast, water-soluble pastels. There is just enough binder to hold the pigment together as the pastels are formed by hand. - Sennelier Soft Pastels - Set of 40, Portrait Colors, Half SticksSennelier Pastel, PORTRAIT HALF 40/SET - Includes Bistre 061, Black Green 179, Blue Gray 423, Blue Gray Green 504, Bright Yellow 342, Carmine 052, Cassel Earth 412, Cerulean Blue 257, 264, Chinese Vermilion 792, Flesh Ochre 016, Golden Ochre 131, 127, Helios Red 686, 685, Indigo 139, Intense Blue 468, 464, 463, Mouse Gray 402, Mummy 104, Naples Yellow 099, Nickel Yellow 904, Olive Gray 453, Persian Red 780, Prussian Blue 288, Purplish-Blue Gray 478, 479, 480, Red Brown 006, Red Brown Gray 428, Reseda Grey 212, Ultramarine Deep 392, Van Dyck Brown 439, Van Dyck Violet 409, 406, Vermilion Brown 079, Vermilion 083, White 525, and Yellow Ochre 115.