Pre Sharpened, glides smoothly over paper. Premium quality pencil for designs and drafting. Contains an assortment of harder lead pencils chosen for their ability to hold a sharp point for more detailed work. Superior graphite pencils manufactured from the highest quality materials with maximum point strength, especially break-resistant, easy to sharpen and erase. Finely graded degrees produce clear lines and structures as well as subtle differentiated shades of gray and black.