KOH-i-NOOR Gioconda 8692 extra white coals

Set of 4 white artificial extra charcoals, diameter of 12 mm and length of 75 mm. 4 pieces of one hardness degree in a box. These charcoals are produced in four hardness degrees: 1, 2, 3, 4. They are suitable for drawings on dark surfaces. The best results are achieved when drawing on black paper.