So, what exactly is the blue part of the eraser for?

Admit it: you have tried too. As a child, armed with your famous pink and blue eraser, you frantically rubbed a word with a pen… before seeing your paper make holes in front of your eyes. This little blue half, supposed to “erase the ink”, has shattered many schoolchildren’s dreams. Office Supplies

But then, what is the blue part really for? Was it a simple marketing stunt or a misunderstood pro tool? The truth is much more practical — and a bit nostalgic.
No, it was never designed to erase ink

This is the most enduring myth in our school bags. Contrary to the legend, the blue part of the eraser was never intended to make the ink disappear from pens. Ink and Toner

In reality, everything is explained by its composition: it contains abrasive particles, similar to pumice. In other words, it is a kind of very thin mini sandpaper, designed for harder surfaces. On a classic leaf, these grains “scratch” too much and end up piercing it.

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