The Li-Ning G Tek II Series badminton racket is engineered for intermediate badminton players. G-Tek features an Aero-Tec Beam System which makes the racket frame aerodynamic, allowing it to move faster through the air. It also includes the Dynamic Optimum Frame which enlarges the sweet spot of the racket. This is a medium flex badminton racket made of Aluminum and Graphite which gives the racket the perfect mix of flexibility and rigidity. The fact that it is made of ultra-rigid graphite gives this racquet added strength and makes it more sustainable to withstand string tension.