Ideal to draw, blend and overpaint. The pencils feature an oil-based medium to hard 3.8mm thick lead core. Made from a blend of wax, fats and oils, these pencils are classed as a soft oil coloured pencil. They contain a high grade pigment which helps ensure little pigment fading or light discolouration. They work well on any kind of paper with excellent covering and blending capabilities. Set of 36.