The Winsor & Newton Artists' Oil Colour - Cobalt Blue Deep - 37ml is a high-quality oil paint that is perfect for professional artists. This paint is made with the finest pigments and has a high degree of lightfastness, ensuring that your artwork will remain vibrant and beautiful for years to come. The paint is also highly mixable, allowing you to create a wide range of colors and shades. The 37ml tube is ideal for larger projects, and the paint can be used on a variety of surfaces, including canvas, wood, and paper.This oil paint is easy to use and can be applied with a brush, palette knife, or even a rag. It is best to apply the paint in thin layers, allowing each layer to dry before adding the next. This will help to ensure that the colors remain vibrant and that the paint does not become too thick. The paint can also be thinned with a medium such as linseed oil or turpentine. Once the painting is finished, it should be sealed with a varnish to protect it from dust and dirt.The Winsor & Newton Artists' Oil Colour - Cobalt Blue Deep - 37ml is a great choice for professional artists who want to create beautiful, vibrant artwork. The high-quality pigments and lightfastness ensure that your artwork will remain vibrant for years to come. The paint is easy to use and can be applied to a variety of surfaces. With this paint, you can create stunning works of art that will last for generations.