The history of erasers dates back to the 1770s, when bread was the primary tool used to erase pencil markings. People would roll up and moisten bread to remove graphite marks effectively.
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 ...
Clean Magic Eraser lives up to its promise by attaching itself to the muck and guck and literally stripping it away, leaving your surfaces pristine. This polymer sponge works like a pencil eraser.