Do You Know These 16 Things About These Common Objects?

7. The hole in the middle of the shaft of ballpoint pens is to help keep the ink of the pen running.

8. The hole in a spaghetti strainer can indeed be used to separate boiling water from your noodles but it could also be used as a measuring utensil.

9. The blue part of the erasers are to get rid of pencil marks on art and graphic papers.

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