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 have been seen wielding large gunbai with the same features. It is a wide fan with tomoe on it and has a long handle with bandages wrapped around the base, as well as having a long chain attached to it. In the past, when Madara used it, it was depicted as being brown with red tomoe and a chain was attached to the handle that appears to have been connected to his kama,  When Obito started using it, it was depicted as having a purple tint with a black border and tomoe design on it, with the chain appearing to enter his sleeve. During the Third Shinobi World War it was seen hanging on a wall inside the caverns of the Mountains' Graveyard and later during the Fourth Shinobi World War, Obito returned the fan to Madara, stating that it was in fact Madara's in the first place.

Obito wields the gunbai predominantly like a flail using the chain attached to guide the fan which he can use also as a shield because of its durability, as it was able to block Naruto's Super Mini-Tailed Beast Ball without receiving any noticeable damage. Madara could wield it, either to perform various techniques or in conjunction with his kama.

Utilised Techniques

 * Uchiha Return
 * Gunbai Barrier Technique

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.