This racket is built with anti-twist technology, a new Super High Modulus Multi-Layered Graphite, and the right amount of ingredient combination on RSL shaft creates Super Durability, Flex Power and Stop Shaft Twisting. This helps to increase racket's durability and overall improves execution with Power and more Control. -- Aero design decreases air resistance and combining box shape to get solid structure, creates a solid hitting feel and quick swing. -- Muscle Power @ 9, 12 and 3 o'clock of the frame seats the string on rounded archways that eliminate stress-load and fatigue through contact friction thus producing high repulsion power and sharp shots. With its wrinkle free technology, less material is used to achieve Super Strength, thus creating a well balanced racket with strong material in shaft and handle.--