When in combat against a katana at the hand of a skilled swordsman, a Japanese Sai Dagger such as this one would have proved very useful. This traditional martial arts weapon was developed in Okinawa Prefecture, made up of hundreds of Ryukyu Islands. They were generally used in pairs for blocking, trapping and inflicting short jabs into the opponent’s solar plexus. Our Japanese Soi Dagger is a beautifully detailed yet simple replica of a fighting knife made popular in the 16th century.