Get the most out of the shades of black Purity of the graphite Wide and regular range of graduations Grafwood Extra-fine graphite pencils, 15 graduations from 4H to 9B. The line is completed by the eraser Technik, a sharpener a stump and a metal box. Everyone can assemble their own Graphite Line assortment. Techniques : washes, water colours, stippling, shading, writing, sketches, graduation, blurring, technical and artistic drawing, and mixed techniques. ...