Van Gogh watercolors are a student and artist level range of paints featuring brilliant, transparent, and intense colors with high tinting strength. Lightfastness rated at +++ (100+ years under museum conditions). Thanks to the purity and uniform viscosity, these watercolors are easy to work with and easy to mix. Proudly produced in Holland with stringent quality control for a consistent experience with every purchase. The Van Gogh watercolor range consists of 72 colors in 10ml tubes and in half pans. New color for 2019! Van Gogh watercolors are rated as a student and artist level paint range. They feature brilliant, transparent, and intense colors with high tinting strength. Thanks to the purity and uniform viscosity, these watercolors are easy to work with and easy to mix. Proudly produced in Holland with stringent quality control for a consistent experience with every purchase. This 10ml tube of Graphite 840 is formulated with pigment(s) PW20/PW15/PW6/PBk11, is semi-opaque, and has a lightfastness rating of +++ (at least 100 years lightfast under museum conditions).