Horn double and belly double
I have heard that there are some kinds in the mountains, called horn double and belly double. Horn double, its shape is like a horn, the edges are sharp, the color is brown or yellow, and it is born at the top of the oak tree. Belly double is round like a belly, plump and plump, with delicate skin, also attached to the oak tree.

Both are galls. In the past, there were small insects, which were sent on the oak tree and fed on its liquid. The tree felt its disturbance and caused strange changes to resist it, so it formed a horn double and belly double shape. Its quality is firm and solid, although it looks different, it has a unique state.

Those who collected herbs in ancient times often went into the mountains and forests to search. The horn is double and the belly is double astringent, and it can be used as medicine. It can astringent intestines and stop diarrhea, stop bleeding and restrain sores. Every time a doctor encounters diarrhea or bleeding, he often thinks of this thing. Although it is not the most precious among medicinal stones, it is indispensable.

The horn is double and the belly is double, born between mountains and forests, nourished by heaven and earth, it has become this strange thing. Its shape is different and special, it is a treasure of mountains and forests, and it is also a good material for medicine. It is really a wonderful gift of nature.