The Li-Ning 3D Calibar Instinct Badminton Racquets are designed for players looking to dominate the court with powerful smashes and agile gameplay. The 3D Calibar platform features a unique hi-tech geometrical frame design which greatly reduces air resistance, allowing faster swing speeds and maximum power in your shots. The Compressed frame design allows concentration of power and wing stabilizers restrict frame shakes, this results in more powerful and accurate smashes. The 3D Calibar 900 Instinct Badminton Racket is the most advanced racquet from the 3D Calibar series and features a flexible shaft that is designed to facilitate a fast attack style of play. Instinct is also the lightest racquet in the 3D Calibar series and is suitable for players looking for a lightweight racquet for aggressive speed and agility. The Instinct series is suited for players who want to combine a lightweight racquet with aggressive speed and agility. These racquets have flexible shafts and weigh less than 80 grams. 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 Instinct Badminton Racket doesn’t come with a cover.