9 Hidden Features Of Everyday Things Most People Don’t Know About [With Pictures]

4. The Blue Side Of An Eraser


You remember those erasers we used back in school which had one side to be blue and the other to be red? Back in school, we were told the blue is meant for erasing pen writings, most of us tried it and it obviously didn’t work, we ended up tearing our books. This is because the blue side is not meant for that, it is actually meant for erasing pencil writings on hard surfaces while the red side was meant for erasing pencil writings on soft surfaces. Now you have it, you can teach it to your children so they don’t repeat your mistake.


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