Simple pencil sketch.

pencil drawing, drawing executed with an instrument composed of graphite enclosed in a wood casing and intended either as a sketch for a more elaborate work in another medium, an exercise in visual expression, or a finished work.

It is mainly used for artistic sketching and drawing, for stenography or notes.

Its benefits are the simple usage as well as being able to remove what you’ve drawn with an eraser.

What makes the pencil a writing utensil is based on the crystal structure of the graphite and a low Van der Waals force.