Pure Hardtmuth leads provide the widest coverage in the Koh-I-Noor graphite range. Solid graphite drawing instruments come in 1/4" x 3" blocks and 3/8" x 4 3/4" sticks. Blocks are available in graphite, artist sepia range, and charcoal, while sticks are available in 2B and 4B graphite. Our blocks can be shaped with a sanding block, while the graphite sticks can be sharpened with an extra large hole sharpener or block. The shavings can be used for smudging, providing the artist with a range of tonal values.