Derwent Watercolour Pencils are an exciting and versatile colouring medium which can be used to produce an interesting variety of drawing and watercolour painting effects. They are highly pigmented to allow for maximum colour purity and light fastness. Derwent Watercolour Pencils are soft, smooth texture lays down colour beautifully when they are used dry and makes them easy to layer and blend. To create a watercolour painting effect, use them wet or apply water on top of your dry colour to blend your layers. They are not permanent when dry, you can easily reactivate the colour by rewetting your layers. Suitable for use on medium-heavy weight drawing paper or watercolour paper.