Yo-yo is very popular. Now it is very convenient to make and sell, and it is also very popular with consumers. They are only a few yuan each and they are not expensive. They can be eaten not only as snacks, but also as breakfast. Yoyo rice balls are a new way to eat coarse grains, which are delicious and nutritious. You just need to learn its technology. You'd better visit their headquarters first. I heard that there are many snacks there.