What are the traditional tricks of China?

Dan, sword, beans and ring. Dan, swallowing iron eggs and swords is eating swords; Beans are picked by immortals (two bowls of seven rubber beans are tied together, changing back and forth, coming and going without a trace, and coming and going without a shadow); The ring refers to a nine-ring chain, and nine iron rings made of lead wire can be transformed into lifelike things, such as tricycles, official hats, flower baskets, lanterns and so on. There are jars, discs and the like.