Chain Wind Staff

A weapon stored in one of Tenten's small scrolls, it's a short wooden staff with two kusarigama attached to both ends that can be thrown like a boomerang of sorts. The quick rotation of the two chains was shown to be powerful enough to cut through the helmet of the Cursed Warrior.

Trivia

 * Despite summoning weapons not requiring a blood contract, Tenten actually used blood to summon this weapon.