The term refers to four kinds of precious seafood, namely abalone, sea cucumber, shark's fin and fish maw. It is often used in Guangdong, Hong Kong and Macao to refer to sumptuous banquets or expensive delicacies.

Maw (fish maw), that is, the swim bladder, after dissecting the sun-dried and become. Generally shark maw, salamander fish maw, etc., is one of the four major sea food. Fish maw is rich in nutrients, the dried product contains 84.4% protein, containing 0.2% fat

Abalone: abalone, ginseng: sea cucumber, shark's fin, shark's fin

Bao: abalone, ginseng: sea cucumber.