Li-Ning Windstorm 680: Super light racquet (78-80 gm) of Aerodynamic design with low air resistance and high tensile strength. Increased sweet spot for improved hitting velocity with wider string area to increase bounce strength. The name WINDSTORM is inspired from the four character proverb in Sun Tzu s Art of War: When in movement, be as swift as the STORM. When in slow marches be as majestic as the WOODS. When in aggression be as fierce as the FLAME. When in stillness be as firm as the ROCKS.LI Ning is worlds renowned firm in the field of sports equipment design and development. In the area of Badminton, Li Ning has developed world class racket and badminton accessories to support the top class badminton players. World number 1 Lin Dan is endorsed by Li Ning , in fact most of the top seeded badminton players are endorsed by Li Ning Badminton team. Li Ning shoes are very popular among the badminton player because of its excellent bounce, cushioning, shock absorption and breathability. As a leader in the worldwide market, their name is a trusted brand by numerous badminton stars. Millions of loyal customers prefer their products as far as badminton is concerned.