• High quality full graphite pencil • Special lead formulation for results with a metallic lustre in a wide variety of grey tones • Particularly suitable for writing, drawing, sketching and hatching as well as for professional graphic and artistic applications • Available in 12 finely graded consistent degrees: HB, B, 2B, 3B, 4B, 5B, 6B, 7B, 8B, 9B, 10B, 11B • Pencil / lead diameter: approx. 6.8 mm • No wood-case, i.e. no wood waste • Lines reproduce well • Sharpener recommendation: Mars double-hole sharpener 510 25 or sandpaper 923 for ideal sharpening results