Babolat’s Cortex technology is a vibration-dampener which runs the shaft of the racquet handle, which protects players from tennis elbow at impact. This lightweight racquet is ideal for advanced-intermediates because it gives power to each stroke. Specifications Head Size: 100 sq. in. Length: 27 in. Weight: 11.1 oz. Flexibility: Very stiff Balance: 3/5 in. head light Ideal Swing: Long Product Review: “My topspin forehand has always been my major weapon. But the performance that the aero gives me lets me go from defense to offense from way behind the baseline. At net I can do my routine drop volleys with no problem, but the punch isn't quite there. Serves are fine, it isn't a pure drive but the aces are there. Groundstrokes are still a dream.” Tony, Sydney, Australia