Winsor & Newton Artists' Oils are available in 133 colours formulated with the finest pigments ensuring excellent tinting strength. So that you can trust in the longevity of your work, these oil colours are tested for lightfastness (not fading from light exposure) and permanence (not changing over time) qualities and have some of the best ratings (at least AA or A). Use thickly or thin to a very fine glaze. Stock up at any Eckersley's store or online for the month of May and get 25% Winsor & New