Derwent Watercolour pencils in the 24-piece tin provide a significantly wider, professional spectrum of delicate, mixable colors for more intricate illustration work. The soft-textured, water-soluble core glides smoothly over paper when dry for expert layering, but responds effortlessly to water to create flowing gradients and soft washes. Housed in a compact, durable storage container, this expanded set gives artists deep palette flexibility without muddying or compromising subtle tones.