Pen knives are one of the human’s greatest inventions. There’s something innately satisfying about flicking open a penknife and easily cutting open a box. But they aren’t just one-trick ponies. As you’ll see on this list, pen knives can be stacked with different features to make your life easier. On this list, we’ve got dual-blade pen knives, pen knives with LED flashlights, and much more. After hours of research and testing, we’ve come up with a list of 10 different knives. Here are the best pen knives.