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 50, Assorted Colors, Wood BoxSennelier Pastel, WOOD BOX 50/SET - Includes Apple Green 205, 207; Bistre 062; Black Brown 004; Bright Yellow 342, 344; Cadmium Yellow Light 297; Cadmium Yellow Orange 197; Cerulean Blue 257, 259, 263; Chromium Green 230, 231, 233; Cobalt Blue 353; Forest Green 911; Gray 515; Helios Red 680, 686; Ivory Black 513; Lake Brown 266, 269; Lemon Yellow 600, 602; Madder Carmine 378, 380, 383; Moss Gray Green 171, 173; Nickel Yellow 900, 902; Persian Red 780; Purple Blue 281; Raw Sienna 507, 509; Red Brown 009, 011; Reseda Gray Green 211, 214, 216; Turquoise Green 720, 725; Ultramarine Deep 388, 390, 393, 395; Vermilion 080; White 525; and Yellow Ochre 113, 117.