The cousin of the Senior Soldier's wife sat in a four-story residential building opposite the Lemar Government Building. Through the window, he could see a full view of the Lemar Government Building, including the square in front of it.
He took a small ball from his pocket, peeled off a layer of oil paper, and stuffed a thumb-sized ball into his mouth.
This is a kouli ball. Its academic name, in fact, people prefer to call it a "Mouth Fitness Ball" or "Mouth Fitness Gum," and it is a product that is difficult to categorize in people's lives.
Is it considered a health product?
Perhaps so.
It was initially conceived in the bodybuilding field; those bodybuilders who hoped even a strand of hair could flex like a muscle had corresponding requirements for facial muscles too.
However, training bite force is not as easy as other exercises, and can be challenging, with everyone having their own methods.
