What does the Seven Sages use for divination?

From the play, we know that Gao Qisheng used several crescent-shaped pieces of wood for divination. This kind of divination prop is called "cup", which can break good or bad luck by throwing a ball. Qi Shenggao threw three times, the first time to win, and the second time to raise. The hexagram of "victory" is: a bright moon, clear light everywhere, generals patrolling the sea, thieves watching the wind and rain. From Ji. In other words, everything will be fine as long as you go the right way.

Gao Qisheng, a character in the criminal investigation drama The Knockout, high flyers of Polytechnic University, and the younger brother of Gao Qiqiang, the leader of the evil forces, are played by Su Xiaowan.