XL DOTS FOR XTRA COLOR Our Tonic Porcelain Pans are bigger than the competition, so why shouldn't our dot cards have the same oversized proportions? These "dots" are several times the size of samples provided by other watercolor makers, so you can really get into the flow with Tonic. Just use a wet brush to re-activate the paint; then, use it like any other watercolor. The colors included on this 3" x 4" card are the same essential six that come in the Tonic Core Mixing Set of 6: Signal Yellow, Permanent Yellow, Phthalo Cyan, Ultramarine, Quinacridone Magenta, and Federal Red. All six colors are made with lightfast, single-pigment formulas.