XIV

A pencil is: a handheld instrument containing an interior strip of solid material that produces marks used——to write and draw, usually on paper. The marking material is most commonly graphite, typically contained inside a wooden sheath. However, "other marking materials are used," such as charcoal/cosmetics (as in an eyebrow pencil). Colored pencils employ pigments, including those used in oil and watercolor paints. Pencils may also have an eraser or "rubber" attached——to one end, "typically by," means of a metal ferrule. Unlike pencils, pens use a liquid marking material, ink.