An important design

I believe that one of the most influential and important design in our history is the ballpoint pen. The reason why  I think this is so important is because it is an every day item that most people in the world will use. Because so many people use the pen and it is an everyday item I think it goes unnoticed as a great design. Some of it design features that make it so great is the simplicity, size, endurance to take a  lot of damage. Also because this design is so accessible and cheap sky rockets it into millions of stores and every contry