The product is a book titled "Wing Chun Chi Sau/Bui Chee" written by Sunny Tang. It is a martial arts book published in 1994 in the United States. The book is written in English and likely provides information, techniques, and philosophy related to the Wing Chun style of martial arts. With the author's expertise and cultural background, this book may offer valuable insights for individuals interested in learning and practicing Wing Chun.