Urumi is a double-edged, long and narrow flexible sword-like weapon that is fixed to the combatant’s waist like a belt. The length is customized to suit the wearer’s girth and convenience. This extremely sharp sword is made by joining and compressing foils of iron to ensure strength, durability and flexibility. The urumi is swayed rapidly to inflict slashes on the enemy. As the combatant attacks with force towards the opponent and swings the urumi, the blade coils and turns rapidly. Therefore if