This kneadable eraser, measuring 48 x 36 x 9 mm, is made from a natural base without added plastics or phthalates. It is soft and pliable, so it is very easy to shape. You can use it to easily erase graphite lines and natural or artificial charcoal. The eraser is also good for picking up small crumbs of lead and charcoal, and is very popular among professionals too.