Gunbai

A or  is a non-folding fan, usually made of wood. It was used in ancient Japan by samurai officers to communicate with their troops. Nowadays, it is used by referees of professional sumō matches.

Madara and Obito Uchiha have been seen wielding large gunbai with the same features. Though, in flashbacks, Madara possess a brown gunbai and, in the present, Obito possesses a purple one, Obito confirms that his gunbai is indeed the same one used by Madara in the past. It is a wide fan with tomoe on it and has long handles with bandages wrapped around the base, as well as having a long chain attached to it. In the past, when Madara used it, this chain was attached to the handle that appears to have been connected to his kama,   whereas when Obito uses it, the chain appears to enter his sleeve.

Obito wields the gunbai predominantly like a flail using the chain attached to guide the fan which he can use as a shield because of its durability, and was able to block a Rasengan from Naruto Uzumaki while in his Nine-Tails Chakra Mode without receiving any noticeable damage.

Utilised Techniques

 * Return of the Uchiha

Trivia

 * In the anime cut-scene of Naruto Shippūden: Ultimate Ninja Storm Generations, Madara is seen using his gunbai to create powerful gusts of wind, capable of blocking projectiles and blowing enemies away, as well as a melee weapon in combination with his kama.