Based on single pigment colors, this gouache is a professional's dream. Every color is dense, rich, and highly pigmented. No fillers, opacifiers, or adulterants alter the nature of the colors. Honey is added to gum arabic as a binder. - M. Graham Artists' Gouache - Basic Set, Set of 5 colors, 15 ml tubesm Graham Gouache, 5/CLR BASIC SET - An excellent starter palette, this set contains five 15 ml colors including Azo Yellow, Naphthol Red, Cobalt Blue, Ivory Black, and Titanium White.