You can purchase a new kneaded eraser online or at your local art supply store.

Cut the eraser in half or quarters if it is too stiff to knead at first. This process is often compared to playing around with putty.

The eraser will become a slightly darker shade of grey once the graphite has been fully worked in.

Unlike typical erasers, kneaded erasers also erase cleanly without leaving bits of the eraser behind to brush off.

You can also sculpt the eraser into other shapes to suit the area you are erasing, such as a thin straight edge.

Kneaded erasers are not great at removing pencil lines, however. Use a rubber or vinyl eraser for that.

Rendering can be used to create entire drawings or for a smaller section of a larger drawing.

This can save you time while drawing, since you won’t have to get up as frequently to wash your hands.

Repeat several times until the surface is rubbery and no longer smooth and covered in drawing material. Your kneaded eraser will get darker with use as it absorbs more and more material.

A plastic bag or small tupperware are great options. If you have a box to store your art supplies, you can also toss it in there.

A used-up eraser will be stiff and difficult to stretch, almost like a ball of dried-up black gum.