The Tanto, although not technically qualifying in the category of swords, is the traditional Japanese dagger. It can have a single or double edge. It acts like a wakizashi and is worn at all times. The main purpose of a tanto is to be used as a stabbing instrument but having a pretty sharp edge, it can be used to slice and cut. The Tanto has become more ornate over the years and towards the end of the Samurai era, they were mostly used as decorative pieces, and still are mostly used in decorations to this date.