The Li-Ning 3D Calibar 900 Badminton Racquets are designed for players looking to dominate the court with powerful smash and agile gameplay. The power-packed badminton racket uses 3D Calibar Technology and features a high-tech, geometric frame design that greatly reduces air resistance. It provides you with higher swing speeds for stronger smashes and best suits players who rely on peak power in their gameplay. This racquet is perfect for tournament players. This is a DRIVE Series racquet that features a stiffer shaft and highly elastic head design for rapid repulsion power. This series is a perfect match for fast players who display a dynamic game style by switching between offense and defense at lightning speed. Key Features: Geometric frame design: This technology is the core of the 3D Calibar Platform. It is a unique frame design which lowers the drag coefficient of 3D Calibar Racquets for quicker movement. TB- Nano binding technology: Nanometer Technology tightly combines carbon fiber and resin. This provides unmatched elasticity, stability, and durability in every strike. Dynamic optimum frame shape: This unique head design enlarges the sweet spot of the Racquet. It allows for more consistent and higher hitting velocity without sacrificing durability. About Li-Ning: Li-Ning Company Limited is a Chinese sportswear and sports equipment company founded by former Olympic gymnast Li Ning. The company endorses a number of athletes and teams worldwide. Does the racket come with a cover? No, the Li-Ning 3D Calibar 900 Badminton Racket doesn’t come with a cover.