This paper model is Gokai Saber, the Gokaigers' primary melee-combat sidearm, resembling a cutlass with a built-in grappling hook and a Gokai Cylinder in the back of the blade triggered by pressing the Gokaiger logo on its hilt, based on the Kaizoku Sentai Gokaiger of Super Sentai TV series, the papercraft is created by [unknown].
Gokai Saber is Final Wave attack is the Gokai Slash where a Ranger Key is inserted into the Gokai Cylinder mounted behind the blade, allowing the Gokai Sabre to perform either an energized slash or fire an energy blade by swinging the sword.
In battle Gokai Blue and Gokai Yellow will typically trade their Gokai Guns with Gokai Green and Pink for their Gokai Sabers. With Silver in Gold Mode and the Hurricanegers, the Gokaigers were able to perform the group attack Gokai Super Ninpou: Hurricane Scramble. [Source: wikia]