Technology 2

I bought good pencils, to take notes in the forest. They are good, but don’t have erasers on top of them. I don’t use erasers, but the assistants do, they are very tidy. So, how do you solve the problem? You wrap a small rubber band (here they are everywhere, for example used to seal plastic bags with food and drinks) to the top of the pencil. And being rubber, it perfectly erases.