This Art Spectrum Watercolour is composed of lightfast pigments giving your artworks a permanent and long lifespan. The paint is carefully milled to enhance the pigment allowing you to create bright and vibrant works of art. This paint should be used with water and be mixed with other colours to develop stronger tints. It's composed of lightfast pigments for long lasting colour. It can be used to develop stronger tints and paint mixes. There is 10 ml of watercolour paint in this tube.