The nunchaku (Japanese: ヌンチャク, Hepburn: nunchaku, is a traditional Okinawan martial arts weapon consisting of two sticks connected at one end by a short chain or rope. The two sections of the weapon are commonly made out of wood, while the link is a cord or a metal chain.
The exact origin of nunchaku is unclear. Allegedly adapted by Okinawan farmers from a non-weapon item.
There is much controversy over its origins: some say it was originally a Chinese weapon, others say it evolved from a threshing flail, while one theory purports that it was developed from a horse's bit