A low tech item that has a high tech value. I am one of these people who functions like a Swiss Utility knife. If you need it, I have it on me. That is the geek in me… This pen, due to its’ size, I can carry with me at all times (like, in my wallet). The really good thing here is that Narwhal Co provides a lifetime warranty with FREE refills. So far, good customer reviews on these mini-pens.