Thank you for viewing. This is a set of 10 charcoal sticks of varying sizes, with a metal case. Jumbo (9mm) x 2, L (6.5mm) x 2, M (2.16 inches) x 3, S (4.5mm) x 3. Made from natural willow, so sizes may vary slightly. Retail price: 6440 yen (reference Amazon) - Product name: willow charcoal - Quantity: 10 sticks - Storage case: Metal case - Description: Material suitable for drawing that utilizes the texture of charcoal Type: Art supplies Item: Drawing supplies