The Castell 9000® pencil is a classic launched by Count Alexander von Faber-Castell in 1905. Its quality and different grades have made it a favorite among artists and illustrators. Its lead is completely bonded to the wood using the Sekural technique, making it much more resistant to breakage. The Castell 9000® has water-soluble graphite of artistic quality and lightfast leads. The Aquarelle Graphite Pencils are ideal for classic watercolor paintings, sketches, and small projects. Their different grades allow you to achieve strong levels of light contrast. By adding a wet brush to the strokes made with the Aquarelle Graphite, it is possible to change its tone by adding more water. The Aquarelle Graphite Case includes 5 Aquarelle Graphite Pencils in HB, 2B, 4B, 6B, and 8B grades. The Aquarelle graphite pencil is ideal for preliminary watercolor sketches and complete watercolor graphite techniques. It has an extra 3.3 mm break-resistant lead and is available in five grades: HB, 2B, 4B, 6B, and 8B.