Li-Ning US 998 Lite Plus is the latest 2019 Ultra Strong Series racket and it's made from high-grade carbon graphite. It weighs 80g and has a S2 grip. It has an isometric head shape. It has a string tension of 30-32 lbs with Head Heavy balance & Mid-Flex. Balance is 300mm. These new Plus series having a more durable frame and more smashing power to stun your opponent. If you still prefer the last year version then you can buy here US998 Lite. MEGA STRONG FRAME AEROTEC BEAM SYSTEM DYNAMIC OPTIMUM FRAME HIGH TENSILE SLIM SHAFT JAPAN MADE NANO GRAPHITE Dynamic- Optimum Frame All-round optimized design improves racket mechanical structure for more efficient attack and defense system. The sweet point extends upward and the hitting point is moved higher. The effective defense area is enlarged for severe smash by dynamic-optimum frame. The hitting velocity is improved considerably with widened stringing area and increased bounce strength. Aerotec Beam System Based on aerotec beam system, support of advanced calculation and gathered practicing data, the structure and shape of rackets frame section have extreme low drag coefficient and high intensity, to enable the players´ performance in various shots. The Aerotec-Beam System is an extra aerodynamic badminton racket frame structure that is specially engineered to minimize air resistance while maintaining the strength of the frame.