You don't, Your just buying pencil top erasers.
one erases pencil marks and the other erases pen ink
it dries out
The different kinds of erasers available in the market include vinyl erasers, kneaded erasers, gum erasers, and pencil cap erasers.
No.
Nope, erasers too.
An eraser is used to remove pencil marks or mistakes on paper by rubbing them away. It helps to correct errors and make revisions on written or drawn work. Erasers come in various forms such as pencil erasers, kneaded erasers, and electric erasers.
One is on a pencil!
hisucolemin
Target
PVC erasers are more durable and effective at erasing pencil marks without leaving residue compared to other types of erasers.
In 1770, a vegetable gum that could take away pencil marks was dubbed "rubber" by Joseph Priestly. Edward Naire, however, was the first one to widely-market this substance as rubber erasers.