Faber-Castell’s graphite products are made of finely milled graphite and clay resulting in pencils and crayons that are smooth and never scratchy. Castell 9000 pencils are available in 16 degrees of lead hardness for handwriting, drawing and sketching. Castell 9000 pencils celebrate over 100 years of proven reliability. PITT graphite crayons and woodless pencils are offered in 4 degrees of hardness.