These water mixable oil colors have a high degree of light-fastness and under museum conditions will remain unchanged for at least 100 years. The solvent-free, water mixable oil paint gives the same great result as traditional oil paint including even brush strokes and long-lasting fade resistant color. This is a great way for artists to experience the handling and general working properties of Cobra Study solvent-free, water mixable oil colors. The 3-tube 20ml primary trial set includes primary yellow, primary cyan and primary magenta.