Features:

• High-quality acid-free pigments in bright colors, unsurpassed lightfastness
• Vibrant color laydown
• Perfect for smudging
• Thick 4.3 mm lead
• Suitable for use with fixatives
• Made from soot and clay, Faber-Castell Pitt Charcoal Pencils contain natural charcoal 
• that glides softly across the paper, rubs, and smudges easily, and can be erased and overlaid with a minimum of difficulty.
• Grease-free and oil-free, these artist-quality charcoal pencils make bluish-black lines in your sketches.