The golden hook wing is taken from the tail fin of a shark, which is a famous food in China. It is famous for its beautiful appearance and delicate meat quality. The whole wing is boneless, the flesh membrane is thin, the wing needle is thick, and most of them are raw wings. A shark's tail is called a caudal fin. The fin is particularly suitable for sliding in water at a relatively high speed and pushing itself forward. Each shark is different in shape and size.