The Wolff’s Carbon Pencil Set contains B, 2B, 4B and 6B pencils and is used for sketching, drawing and tonal work. Wolff’s Carbon Pencils are useful for quick, loose expressive sketches as they combine the sharp lines achievable with graphite and the rich black tones of charcoal pencils without the issue of breakages. Blend, smudge and shade with ease and create some wonderful dramatic marks. Wolff’s Carbon Pencils can also be combined with water to create washes.