What Is the Purpose of Your Eraser’s Blue Side?
Erasers were necessary for everyone in school when I was a youngster, and they are still necessary today. While the blue side has been known to remove pencil marks, it also serves a purpose!
That blue side of the eraser, it turns out, is designed to remove pen ink, but it only works on very strong and thick paper. The blue side of the eraser is more abrasive and tougher than the soft pink side. It also removes a lot more paper when you use it, which explains why you’ve ripped through your paper so many times.