The Koh-I-Noor Gioconda Artist Graphite Blocks, 6B, are extra smooth, high quality blocks that are excellent for drawing and sketching. Ideal for use on newsprint, bristol and colored paper, these blocks achieve great effects on heavily textured surfaces. Made of the highest-quality ingredients for a perfect result. Made in Czech Republic. 2 pack. Koh-I-Noor - Bringing you the best in professional grade drawing and design.