Ideal to draw, blend and overpaint. TheÊpencils feature an oil-based medium toÊhard 3.8mm thick lead core. Made from aÊblend of wax, fats and oils, these pencilsÊare classed as a soft oil coloured pencil.ÊThey contain a high grade pigment whichÊhelps ensure little pigment fading or lightÊdiscolouration. They work well on anyÊkind of paper with excellent covering andÊblending capabilities.