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. 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.