Cotman Watercolour 1/2 Pan Metallic Sr.2 473-Iridescent Black | | Winsor & Newton

new metallic watercolor colors that give your color iridescence. they can be used either mixed with watercolor paints or added as an iridescent layer on top of the color. darker iridescent watercolor, perfect for use alone or to tone other colors to make them iridescent and darker when mixed. permanent and lasting color.