A real classic are Swiss pocket knives from Victorinox. They are versatile and very durable. A small version of this pocket knife is the Victorinox Classic SD. With a length of less than 6cm, it is hardly larger than a conventional AA battery. This means that it can be taken anywhere and anytime without disturbing you. Nevertheless, the most important functions have not been omitted. Includes a knife, scissors, flathead screwdriver, nail file, toothpick and tweezers. Unlike some no-name products, all of these tools are fully usable and serve their purpose.