8. You may think that the blue side on erasers is used to erase pen. If you’ve ever tried it, you already know that erasing ink only leads to a tear in your paper. The blue side of an eraser is actually meant to erase pencil on paper which is heavier or thicker than normal paper. It can also erase any smudges left over from the pink eraser.
in Life Hacks
30 Things You Didn’t Know The Use For

