Winsor & Newton Artists' Oil Colour provides a wide range of colours, with the highest pigment strength and clarity of colour; offering purity, quality and reliability.All 124 colours in the range are individually formulated to enhance each pigment’s natural characteristics and ensure the stability of individual colours. Single pigments are used wherever possible. Every Winsor & Newton Oil Colour is made with fine art pigments and formulated to enhance each pigment’s natural characteristics – providing excellent tinting strength and coverage to ensure every colour performs as it should. So that you can trust in the longevity of your work and leave a lasting impression, oil colours across the ranges have been tested for lightfastness and permanence and boast some of the best ratings (at least AA or A) of any oil paints on the market.Use thickly or thin to a very fine glaze.37ml.