This set contains three white artificial charcoals from Koh-I-Noor. The name white charcoal appears to be contradictory, but it suggests writing properties that resemble black charcoal. It is suitable for drawing on a range of materials including coloured papers, and works perfectly on darker backgrounds. This blister pack contains three hardness degrees - 2, 3, 4. The three grades are blended to give, hard, smooth and very soft, smugeable lines. - Koh-I-Noor - White - Set of 3