There are two evaluation criteria for artificial turf sports grass: the first point is the fineness of artificial turf grass, and the second is the artificial turf fiber diameter. The first criterion is that the higher the quality of the straw fiber, the better the quality of the product. That is to say, the more the number of single-layered grasses, the better the quality of the artificial turf grass. The second criterion is the diameter of the fiber, which is generally calculated using um, typically between 50 and 150 um. Of course, the larger the diameter of the fiber, the better. Such a lawn is not easily damaged, wear-resistant, and has a thick feeling. However, the fiber diameter is very small and almost difficult to measure. Therefore, FIFA specifies the fiber weight. The higher the quality of the fiber and the mass per unit length, the better the quality of the grass.