Do you remember those awful erasers from school? I always preferred the white ones to these because I thought they weren’t very effective. There was that blue part which seemed totally useless, and I always thought it was used to erase pen mistakes.
But the legend says that somewhere, in a land far far away, someone succeeded in erasing ballpoint pen ink with the blue part of an eraser. However, it looks like this was only a myth, as an artist on Quora has revealed the real purpose of the blue part of an eraser.
1. Remember These Erasers?
You must have owned one of these back when you were in elementary school or high school: the blue part of the eraser was intended for erasing ballpoint pen ink.