tonfa

thumb|A pair of tonfa thumb|right|A pair of tonfa with a rounded body throughout. The tonfa (Okinawan: , Japanese: 旋棍; rōmaji: senkon lit. ''old man's staff / "crutch", also spelled as tongfa or tuifa, also known as T-baton) is a melee weapon with its origins in the armed component of Okinawan martial arts where it is known as the tunkua''. It consists of a stick with a perpendicular handle attached a third of the way down the length of the stick, and is about long. It was traditionally made from red or white oak, and wielded in pairs. The tonfa is believed to have originated in either China, Okinawa or Southeast Asia, where it is used in the respective fighting styles.

==History== ===Regional variants=== thumb|left|220px|Martial artists of the Khmer Empire wield arm shields at the forearm similar to tonfa in this bas-relief at [[Cambodia's 12th/13th century Bayon temple]] Although the tonfa is most commonly associated with the Okinawan martial arts, its origin is heavily debated. One of the most commonly cited origins is China, although origins from Indonesia to Okinawa are also possible. Although modern martial artists often cite that the tonfa derives from a millstone handle used by peasants, martial arts in Okinawa were historically practised by the upper classes who imported martial arts from China and elsewhere, and it is likely that the weapon was imported from outside Okinawa. The Chinese and Malay words for the weapon (guai and topang respectively) literally mean "crutch", which may suggest the weapon originating from such device. In Cambodia and Thailand, a similar weapon is used consisting of a pair of short clubs tied onto the forearms, known in Thai as mai sok and in Khmer as staupe. In Thailand and Malaysia, the mai sok often has a similar design to the tonfa, with a perpendicular handle rather than being tied on. In Vietnam, a similar weapon called the song xỉ is made of a pair of steel or aluminum bars. The song xỉ is used as a small shield to protect the forearms and has a sharp tip at the end to attack. 100px|thumb|A pair of Cambodian "tonfa" or staupe which is an arm shield with a pointed edge