Li-Ningís No.5 String is a mighty string that promises balanced performance. It is a perfect choice for players who seek a combination of power and durability. The core of the string is made of heat resistant and high-intensity nylon multifilament. The outer layer of the string is made of high resistant and high-intensity nylon as well. The string has been braided using Li-Ningís multi-rotation technology. The string is coated using Compound Titanium Hydride to ensure durability and improve the repulsion power. Experience the hard-hitting feeling with this top-grade string.