It does more harm than good
This eraser is supposed to erase, to delete something we don’t want appearing on the page. Instead, it does the opposite – it erases the word, perhaps, but instead of leaving the page white and clean, it leaves a huge pink smear on the page, that shouts “I made a mistake and tried to erase it!” That’s not what you want.

This type of eraser is the worst, and for some reason, these pencils that come with a pink eraser at the end were so popular back in the day. How come a product this silly and useless was so prevalent? It isn’t even useful, since it does more harm than good. You need another eraser to erase the mess this pink eraser left.