New color for 2019! Van Gogh watercolors are suitable for students and artists. They feature bright, transparent, and intense colors with high tinting strength. Thanks to their purity and uniform viscosity, these watercolors are easy to use and mix. They are produced in the Netherlands with strict quality control for a consistent experience with every purchase. This 10ml tube in Turquoise Green Tint 661 is transparent and rated with lightfastness +++ (at least 100 years of lightfastness under museum conditions).