NITRAM Academie Fusains Charcoal Grade – HARD (H) can be sharpened to an extra fine point; Unique Hardness of NITRAM H makes lighter & mid tones easier to attain. Box contains 5 Charcoal Sticks. Each Charcoal stick is a square of approximately 5 mm x 5 mm x 15.2 cm (1/4” square x 6” Long) dimensions. NITRAM is considered the Finest Charcoal for drawing & is the preferred charcoal of professional artists, academies & ateliers. Do not crumble or skip when used expressively or under pressure; Low Dust; Easy to Erase & Blend