Winsor & Newton Artists' Oil Colour is unmatched for its purity, quality and reliability - a success which is reflected in its world-wide reputation amongst professional artists. It has 120 colours in the range, offering the widest spectrum of all the Winsor & Newton oil ranges. Every Winsor & Newton Artists' Oil Colour is individually formulated to enhance each pigment's natural characteristics and ensure stability of colour. By exercising maximum quality control throughout all stages of manufacture, selecting the most suitable drying oils and method of pigment dispersion, the unique individual properties of each colour are preserved. Combined with over 170 years of manufacturing and quality control expertise, the formulation of Artist's Oil Colour ensures the best raw materials are made into the World's Finest Colours. Artists' Oil Colour uses the highest level of pigmentation consistent with the broadest handling properties. The quantity of pigment used provides covering power and tinting strength; leading to the saying "artists' quality goes further". Covering Power not only comes from pigment strength, but also from the greater thickness of colour, which results from the stiff consistency associated with Artists' Oil Colour. Covering power is particularly linked to the most opaque colours like Titanium White and the Cadmiums.