Victor Thruster K 15 Badminton Racquet has increased stability and anti-torque advantages because of the power box feature.The shaft of this badminton racket is made of High Modulus Graphite + Nano Resin + 6.8 Shaft .The isometric head shape provides a large surface area for the shots and distributes equal amount of force across the frame.The frame of this badminton racquet is made of High Modulus Graphite + Nano Resin + CSR. The string tension has a maximum limit of 25-27 lbs horizontally and 23-25 lbs vertically.The balance of this racquet is head heavy and has medium stiffness, enabling better movement. The frame is designed in a way it has isometric shape, which adds to the stiffness of the racquet. Victor Badminton Racket Technology : POWER BOX : The box-shaped design effectively increases the stability and anti-torque , can stand higher string tension. . NANO TEC: The NANO TEC technology works by evenly distributing nano-sized particles in the vacant space between carbon fiber bundles, this highly increases the overall stiffness of the carbon composite fibers, and reduces the distortion of the frame. . SEVEN SIX 76 : The single-pass grommet hole construction creates less friction between strings, this effectively reduces tension loss, while extending string life. . CSR COMBINATION : Core shell rubber is used to cover the epoxy resins to build resilience and protection. .