Maruko is not a solid drink. Meatballs are not solid drinks. Meatball usually refers to a kind of food, which is made by mixing glutinous rice flour with water or other ingredients. They are usually spherical or cylindrical and can be cooked in many ways, such as boiling, steaming and frying. Meatballs are soft, elastic and rich in flavor, which is a traditional food in China. Solid beverage refers to the beverage made into powder, which usually needs to be taken with water or milk.