The pencil “lead” is actually a mixture of graphite and clay. More clay in the mixture makes the lead harder. A harder lead has a higher number. Pencils are numbered from 1-3 but most people use a ...

But you must keep studying the image, as somewhere in among the swirls of colour is a very specific item - the lead from a pencil. The person who posted the image explained the photo shows their ...

National Museum of American History pencil, packaged set National Museum of American History Box of American Lead Pencil Co. Venus Pencils National Museum of American History Wallace Pencil Company ...

Premium quality drawing pencil with unbelievably break-resistant lead! Particularly suitable for writing, drawing, sketching and hatching, as well as for professional graphic and artistic ...

The blades should be made of high-quality materials that can sharpen pencils without breaking the lead. The size of the sharpener is also an important consideration, as it should be able to ...