Derwent Graphite is a traditional graphite pencil available in a full range of 20 degrees from a fine, smooth 9H to a soft, smudgy 9B. Ideal for crisp, detailed illustrations or tonal drawings, it has a slim, hexagonal 6.9 mm diameter barrel and an easy to sharpen graphite strip. The strip width varies depending on the degree of the pencil. It has a 2.2mm strip for the harder degrees and a 3.5mm strip for the softer degrees. Available in a range of 20 degrees from 9H - 9B. H stands for ‘Hardness’, B for ‘Blackness’, F for ‘Fine’.