As an essential ingredient in our binding medium, honey contributes to moistness for smooth, easily controlled applications, increased pigment concentrations, and freedom from over reliance on preservatives. Because of the honey medium, our watercolor resists hardening on the palette, or in the tube. It dilutes easily, often after months of disuse. Cobalt Set contains 15ml tubes of: Cerulean Blue Deep, Cobalt Violet, Cobalt Blue, Cobalt Teal and Cobalt Green. Landscape Set Set contains 15ml tubes of: cerulean blue, sap green, burnt umber, dioxazine purple and yellow ochre. Basic Set contains 15ml tubes of: Ultramarine Blue, Permanent Alizarin Crimson, Sap Green, Burnt Sienna and Azo Yellow.