"Bao" is a commonly used Chinese character, which was first seen in Oracle Bone Inscriptions. Its original meaning refers to precious things, that is, Shuo Wen Jie Zi: "Bao," It is extended to the general name of jade, the representation of jade quality, and the seal of the prince after the emperor, and it is also extended to precious equivalence.

Other meaning:

The treasure in the palm is a thick meat pad protruding from the chicken feet. It is full of degumming texture, especially crisp and delicious.

But now not only this piece is called palm treasure, but also the cartilage taken from chicken wings, chicken legs and wing roots are collectively called palm treasure, which is why the price of palm treasure is relatively cheap now. After all, the more parts you get, the more common the price will be. Therefore, everyone has eaten the treasure in the palm of his hand. In fact, in addition to the meat pad of chicken feet, there is also the weakness of bone joints.