There are two evaluation indexes for fiber filament

The finished product of the lawn is composed of filaments, and the main components of the filaments are polyethylene, nylon, polypropylene and the like. The first two are softer than the latter and the price is higher. However, if it is too soft, the grass is difficult to stand up (here, the sports grass), and the rebound ability of the ball is low. There are two evaluation indexes for fiber filament: synthetic grass fineness and fiber diameter. The common sports grass has 5700, 7600, 8800 and 10000, which means that the higher the fineness of the grass, the better the quality. The more the number of grasses per cluster, the finer the grass and the better the quality. The diameter of the fiber is calculated in μm, typically between 50 and 150 μm. The larger the fiber diameter, the better. The large diameter gives the impression that the grass is thick and wear-resistant. The diameter of the fiber is as small as a thin plastic sheet and is not wear-resistant. The index of fiber filaments is generally difficult to measure, so FIFA generally uses the index of fiber weight.