Conte a’ Paris Sketching Pencil - Charcoal / Fusain - Grade - B are an exceptional & extensive range of pencils, including both traditional & unique leads for maximum versatility in line, tone & intensity. Charcoal / Fusain Pencil - this gives the clean, dense finish of an intense black. Its special characteristic is that it does not break, making it easy to transport. It also blends perfectly with iron red and Sepia Pencils. Lead diameter is 4 mm.