Originated in Europe. Pommel horse from the vault project. The Romans used wooden horses to train riders. In 1804, the famous German gymnast Gürtermutz replaced the horse's saddle with a pair of hoops, which were replaced by wooden rings to form the present pommel horse. Pommel 1896 was listed as a gymnastics competition for men's project. At the final of the pommel horse, there will be a maximum of two athletes participating in each team. Only the top eight or the top six athletes in the team competition will qualify. Inflatable airtrack is a new product. Only optional action. The athletes will be required to set one-half of the total number of moves and self-selected moves in the group stage, plus the scores of the optional moves in the final of the pommel horse as the final score, with the highest scorers coming first. Out of 20 points. In the mid- and late 1970s, Z. Marjorie, a Hungarian athlete, pioneered the technique of vertical pronation, reverse swivel and beating displacement along the longitudinal axis of the body, and American athlete K. Thomas created the all-legged wave technique. In the 1980s, the technique of upside-down and the action of the ring type of splitter gradually increased. Pommel horse technology is fast, hard new moves continue to appear. Chinese athletes made a lot of contributions to the progress of pommel horse technology. From 1981 to 1992, they won six pommel horse world championships in world competitions. From the 1992 Olympic Games, the group points into the individual competitions, only to determine the rankings of the results of the optional action. Out of 10 points. Starting from the 2009 new rules of gymnastics, there is no upper limit on the score. By D points and E points in two parts. D is divided into difficulty points, no upper limit. E points are completed, out of 10 points. The top eight preliminaries qualify for the final. Up to two players per team. Inflatable airtrack are very popular now.