Derwent  - 6 Charcoal Pencil Set, Tin & Sharpener. Derwent Charcoal Pencils are made natural charcoal particles mixed with the finest clay and encased in cedar wood barrels, offering you greater control over your drawings while keeping all those charcoal effects. The tin includes: one light, two medium, two dark charcoal pencils, one white pastel pencil for adding highlights and superior-quality pencil sharpener.