Derwent Academy Graphite Sketching Pencils, Wallet, 12 Count (2300412) Slim 6.9mm hexagonal graphite gray, easy-grip barrel Natural wood barrels and quality graphite is easy to sharpen; break resistant For smudging, the dark, smooth, soft B pencil is your best choice For fine, straight lines choose a hard pencil that will hold its point Degree is printed on the end of the barrel for easy identification