Winsor & Newton Professional Watercolor, 14ml, Transparent Orange. Watercolor, more than any other medium, reflects the unique characteristics of the pigments used and this Professional Watercolor uses only the finest pigments, known for its brilliance, permanence and strength of color. This watercolor offers professional quality pigments combined with the most suitable gums, wetting agents and preservatives. This paint contains the maximum pigment content consistent with good handling qualities, achieving the highest possible tinting strength, quality and reliability.