Cotman Watercolours are range of moderately prieced colours which have been carefully selected to offer a wide colour spectrum with in a uniforme price. A range which suitable for both amateur artists or the accomplished artist who requires large volumes of colour at economical price. The range of 40 colours are chosen according to mass tone, undertone, colour strength, relative opacity and the character of the pigment itself. The colour itself relates to Professional Watercolour in hue, enabling the use of colours from either range with minimal adjustment to technique. All colours in the Cotman Watercolour range rated AA or A and recommanded as permanent for artist use.