Most people use regular pencils, which break and wear out easily from normal use.
Copy pens are the size of a normal pen, but can color with any color by scrolling through the touch screen or instantly finding a color by scanning it.
The pen head can also be switched out for the pencil head and switch out the ink mixer and the ink cartridges for the leads to write like a normal pencil.
The pen head can also be switched out for the pencil head and switch out the ink mixer and the ink cartridges for the leads to write like a normal pencil.
The pen head can also be switched out for the pencil head and switch out the ink mixer and the ink cartridges for the leads to write like a normal pencil.