ADVANTAGES OF PENCIL

• A pencil stroke is erasable and thus correctable.
• Pencil writing is environmentally friendly, since all materials used in manufacture are of "natural" origin. Moreover, wood is a renewable natural resource.
• A pencil writes in/under water, in a vacuum and "upside down".
• Pencil writing is absolutely non-toxic, because all ingredients used in manufacture consist of entirely safe substances (clay, graphite, wood, water-based lacquer).
• Pencils can even be used on extremely cold and hot days, as the lead does not react to temperature fluctuations.
• Pencils are always "ready-to-write" and can even be sharpened with a knife.
• Pencil quality has always been consistently good over the years. (e.g. degrees of hardness).