Henry David Thoreau and his father invented the graphite, which creates very readable text; This became standard in ...

An electric eraser could also be a timesaver. In the days before computer-aided drawing and the ease of the delete and undo ...

Twist-Erase III Mechanical Pencils feature a sturdy ... grip delivers maximum comfort and control With the jumbo Twist-Up Eraser, you'll suffer no smudges, no paper tears and no ghosts Each ...

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 ...