Shuai Chiao (摔角 Shuai-jiao) is the traditional wrestling style of Beijing, Tianjin and Baoding of Hebei Province in the North China Plain which was codified by Shan Pu Ying (善撲营 The Battalion of Excellency in Catching) of the Nei Wu Fu (内務府, Internal Administration Unit of Imperial Household Department). In modern usage it is also the general Mandarin Chinese term for any form of wrestling, both inside and outside of China. As a generic name, it may be used to cover various styles of wrestling practiced in China in the form of a martial art or a sport.