What is the weight of Gankun five-element bag?

I would like to ask what is the appropriate weight of Gankun five-element bag? Ten Jin.

According to relevant surveys, it is most appropriate to practice 10 kilograms 200 times each time.

Gan Kun's five-element bag seems to be practicing finger strength In fact, the whole body has been trained to have arms like willow branches and fingers like steel hooks. Practice the fixed step first and then the moving step.