Pencil Leads
Pencil leads are slender rods of graphite or a similar substance that are used inside mechanical pencils to create marks on paper. They come in various thicknesses and hardness levels, allowing for a range of line widths and tones to be achieved. Pencil leads are typically encased in a protective sleeve or casing to prevent breakage and allow for precise writing or drawing.
External Links
- [roger-russell.com] Roger Russell, McIntosh Lab., Scripto and Norma Pencils and leads