Derwent Watercolour Pencils are versatile colored pencils with pure, consistent color. Use dry like a standard colored pencil or use with water and a brush for true watercolor effects. The soft core makes these pencils pefect for blending and layering. Derwent Watercolour Pencils aren't permanent when dry, so you can re-wet and re-work the color as needed. Each pencil has the color name and number clearly imprinted for easy color identification.