Derwent Academy 20 Watercolourable Markers Derwent Academy markers are water-based, giving you maximum control for fine line drawings or beautiful washes of colour for wet media techniques.Explore a wide range of techniques such as stippling, lining, layering and blending.First apply light colours to your paper to avoid transferring dark ink to the tips of other markers. Vibrant colour markers contain water-based inks that can be used with water wash techniques to create a wide range of drawing styles.Suitable for use as a wet or dry drawing medium.Includes 20 water-based colours. Brand: Derwent