M. Graham watercolors are now available in color palette sets of five 15ml tubes (intermediate set contains ten 15ml tubes). These watercolors combine exceptional amounts of pigment in a time-honored binding medium of pure gum arabic and natural blackberry honey. Why honey? As an essential ingredient in the 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, these watercolors resist hardening on the palette, or in the tube. It dilutes easily, often after months of disuse. A "Green" company, M. Graham brings environmentally-conscious watercolorists a professional paint they can enjoy using!