Derwent Studio Colored Pencils have the same texture and blend ability of Derwent Artists Colored Pencils, with a crisper, more precise drawing style. The Studio pencil shares the same color core as Artists, but it is slimmer and the wood barrel is hexagonal rather than round, so it's easy to grip and particularly suited to detailed illustration work, such as botanical studies, architectural drawing and graphic design. Finished in black with a color-coded end for easy identification. 3.4mm core. 6 count pack includes Lemon Cadmium, Geranium Lake, Oriental Blue, Mineral Green, Golden Brown, Ivory Black.