After the net is thrown, the fish is wrapped. Because fish are social animals and have the characteristics of gregariousness, when the net is closed, no fish will escape from the bottom of the net privately, waiting for everyone to run in panic. It will eventually be captured. There is also a sinker made of lead on the edges of the fishing net. After the net is spread, it quickly sinks to the bottom.

When it is pulled up, it slows down and the sinker gradually closes against the bottom. Then lift it slowly. The fish caught in the net will not fall because of the sinker.