Blue part on the eraser
These erasers can remind many people of their childhood, but not many people know why there are two different colors. Some say you can erase pen ink with a certain side of the eraser, but actually this part is made for stronger and thicker paper. It was made for artists who use special types of paper instead of notebooks or loose-leaf paper. Isn’t it cool to solve one of the biggest mysteries of your childhood?
Blue part on the eraser
Square patch on backpacks
Square patches on backpacks definitely make the bags look cooler, but these patches actually serve another purpose besides aesthetics. The patches are called lashing squares or pig snouts and help people carry extra gear! Things that don’t fit in the pocket can be hung with strings and cords threaded through the lashing square. This is a pretty interesting tidbit and can come in handy on your next camping trip.
Square patch on backpacks