- Kohinoor gioconda black charcoal block has a round profile of 12 mm diameter and measures 75 mm in length.
- These extra charcoal sticks blend easily and are extremely easy to use. They allow you to produce a smooth and beautiful texture.
- This set has 4 various gradations: Extra soft, Soft, Medium, Hard each of 12mm dia.
Kohinoor Hardtmuth Gioconda Extra Charcoals Black Set of 4