What do you mean by pulling your fingers?

Banzhi actually existed for a long time, but it was not known until the Qing Dynasty. The earliest finger pulling of Manchu people is made of deer bones, which can prevent the fingers from being scratched by the fast arrow when shooting with a bow on the left thumb. Later, the war stopped, and the finger-pulling made of precious materials such as jade, gold and silver gradually became a symbol of power status, which also reflected the martial spirit of Manchu nobles. In the later period, the emperor sometimes rewarded military commanders who had military exploits to pull their fingers, and pure civilian officials did not bring them.