This is a 15ml tube of Alvaro's Caliente Grey, Daniel Smith Extra Fine Watercolor Paint. Daniel Smith Watercolors are offered in more than 200 colors, ranging from natural earthen colors, to Quinacrodones, the boldest colors that the modern paint-making process offers. They provide unmatched quality. Daniel Smith Extra Fine Watercolors consist of the highest pigmented colors on the market. These dynamic paints offer excellent brushing properties and maintain superior vibrancy, even when mixed with Titanium White. All Daniel Smith products are made by hand.