Perfect for professional artists and coloring enthusiasts, Polychromos pencils offer exceptional performance and a stunning selection of colors. The pigmented leads are vibrant, water resistant, lightfast, and acid free. They also offer great smoothness, consistency, opacity, and blendability. The leads are thick—3.8 mm across—and SV-bonded to the wood casing for maximum break resistance. They are also color-matched to other Faber-Castell products, letting you achieve consistent colors across different media. These pencils feature oil-based lead cores. Their wood casings were harvested from sustainably managed forests and are coated with an environmentally friendly water-based varnish. Sets come in protective metal tins. Set of 12 Colors: Black (199), Burnt Ochre (187), Cadmium Yellow (107), Dark Cadmium Orange (115), Deep Scarlet Red (219), Emerald Green (163), Light Green (171), Light Ultramarine (140), Magenta (133), Phthalo Blue (110), Walnut Brown (177), and White (101) Set of 24 Colors: Black (199), Burnt Ochre (187), Cadmium Yellow (107), Dark Cadmium Orange (115), Dark Chrome Yellow (109), Dark Phthalo Green (264), Dark Red (225), Deep Scarlet Red (219), Earth Green Yellowish (168), Emerald Green (163), Helioblue Reddish (151), Light Green (171), Light Ultramarine (140), Light Yellow Glaze (104), Magenta (133), Pale Geranium Lake (121), Phthalo Blue (110), Raw Umber (180), Ultramarine (120), Venetian Red (190), Walnut Brown (177), Warm Grey II (271), Warm Grey V (274), and White (101)