The Winsor & Newton Cotman Watercolour in Indigo is a high-quality watercolour paint that is perfect for creating vibrant and beautiful artwork. This 21ml tube of paint is made with the finest pigments and is highly lightfast, meaning that your artwork will remain vibrant and true to colour for years to come. The paint is also easy to use, with a smooth consistency that allows for easy blending and layering. It is suitable for use on a variety of surfaces, including paper, canvas, and wood.The Winsor & Newton Cotman Watercolour in Indigo is perfect for both professional and amateur artists alike. It is ideal for creating a range of effects, from subtle washes to bold and vibrant strokes. The paint is also water-soluble, making it easy to clean up after use. For best results, use a quality watercolour brush and mix the paint with water to create the desired consistency.The Winsor & Newton Cotman Watercolour in Indigo is a great choice for any artist looking to create beautiful and vibrant artwork. With its high-quality pigments and lightfastness, it is sure to provide years of enjoyment.