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 20, Assorted Colors, Half SticksSennelier Pastel, SET 20 1/2 STICKS - Includes Bright Yellow 341, Cobalt Blue 353, Helios Red 681, Hot Brown 1911, Ivory Black 513, Lake Brown 266, Lemon Yellow 603, Madder Carmine 378, Magenta Violet 941, Mummy 104, Naples Yellow 099, Orange Lead 037, Prussian Blue 288, Red Brown 006, Reseda Gray Green 212, Ultramarine Deep 388, Vermilion 083, Viridian 252, 265, and White 525.