The tonfa (Okinawan: トンファー tonfā, Chinese: 柺; pinyin: guǎi lit. old man's staff / "crutch"), also spelled as tongfa or tuifa, also known as T-baton is a melee weapon best known for its role in the armed component of Okinawan martial arts. It consists of a stick with a perpendicular handle attached a third of the way down the length of the stick, and is about 15–20 inches (380–510 mm) 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.