AK Interactive's Lead Weathering Hard Pencil Set lets you achieve weather-worn effects with greater ease and precision, than liquid/brush applications. Shading and blending with the four (4) soft lead types (graphite, white chalk, sepia and chipping) is made easier, as the texture is ideal to manipulate with a finger or dry brush. Depending on the base finish they are applied to (glossy, satin or matte), different effects can be achieved. Sharpen with a conventional pencil sharpener.