New color for 2019! Van Gogh watercolors are classified as student and artist level. They boast bright, transparent, and intense colors with high resistance to staining. Thanks to their purity and uniform viscosity, these watercolors are easy to use and mix. Proudly produced in the Netherlands with stringent quality control for a consistent experience with every purchase. This 10ml tube of Interference Red 845 is formulated with pigments PW20/PW15/PW6, is semi-opaque, and has a lightfastness rating of +++ (at least 100 years lightfastness under museum conditions).