Derwent Procolour pencils feature a perfect colour core combination of a strong point and smooth colour laydown, with a texture that has the covering power of wax but glides like an oil-based pencil. The strong and smooth richly coloured core produces a clean, smudge-free finish with a texture that is wax but glides like oil. They also maintain a sharp point for detailed drawing yet remain highly pigmented, with a smooth colour application