Van Gogh watercolours are classified as colours for students and professional artists. They feature bright, transparent, and intense colours with high colour intensity. Thanks to their purity and uniform viscosity, they are easy to use and mix. They are produced under strict quality controls in the Netherlands, providing a consistent experience with every purchase. The 10ml tube of Chinese White 108 is formulated with colour PW4, is transparent and has a lightfastness rating of +++ (at least 100 years lightfast under museum conditions).