So many things today we take for granted, as a result I don't think we look at ways to make them better. Take the example below of the see through highlighter. One of the problems I always had in school with highlighting was I did not always get the correct area. Highlighting multiple lines when I wanted one was a common occurrence especially if I was tired.
While the pen looks exceptionally large. I love the idea and I love how something as common as a highlighter still has the ability to be re-imagined.