What kind of boxing does Donnie Yen practice? What targets are used?

In the movie clip of Ip Man, Donnie Yen rehearses as a Wing Chun dummy.

Wing Chun Boxing is a traditional martial art in China, a technology to prevent invasion, an active and streamlined self-defense system and a boxing method to legally use force. Compared with other traditional martial arts in China, it pays more attention to subduing opponents as soon as possible, so as to minimize the harm of the parties. Wooden stakes are one of the main practice forms of Wing Chun Boxing.