Available in 108 luminouse colours, the Winsor & Newton Professional Watercolour range offers bright vibrant colours and unrivalled performance.Watercolour more than any other medium relies upon the variable characteristics of the pigments used. Winsor & Newton Professional Watercolours use only the purest pigments and are known for their brilliance permanence and strength of colour.With 79 single pigment colours in the range Winsor & Newton offer the widest range of modern and traditional pigments for superb colour mixing.Formulated using the highest quality methods to achieve optimal pigment dispersion, our unrivalled transparency means every wash will remain vibrant and luminescent.104 out of 108 colours in the Professional Watercolour range are rated AA or A for permanence to ensure that the colours used today will appear the same for generations to come.5ml tubes.