Faber-Castell Polychromos colored pencils are formulated with superior quality pigments and are highly regarded by professionals for their smooth color laydown, unparalleled lightfastness and natural blending abilities. Smudge-proof and water resistant, each color is held in casing carefully crafted from California cedar wood. The 3.8mm oil pastel lead contained in every pencil is formulated for vibrant blending and layering of colors without waxy buildup. Polychromos pencils are also break-resistant due to SV bonding and provide sharp, fine lines. Polychromos pencils are available for purchase as individual pencils or in assorted sets.