Van Gogh Watercolour Plastic case Set | 12 x 10 ml TubesVan Gogh water colours are a student and artist level range of paints featuring brilliant, transparent, and intense colours with high tinting strength. Most colours are rated with the highest degree of lightfastness +++ (100+ years under museum conditions) with a few colours rated just one step below at ++ (25 100 years under museum conditions). Thanks to the purity and uniform viscosity, these water colours are easy to work with and easy to mix.