Caran d'Ache charcoal pencils produce a powdery texture, which adheres well to most surfaces. The barrel is made of the highest quality cedar wood and features a hexagonal shape that resists rolling off of a work surface. The dense charcoal core measures 4.7mm in diameter, for increased stability and resistance to breakage. The lead also features a strong, 8-ply construction. Excellent for use in studios or classrooms, these charcoal pencils will deliver incredible coverage and versatility at an economical price!