AeroStorm GT offers advanced players more variety. Solid feel on the flat strokes as well as ability to spin the ball. Aerodynamic for faster stroke. Slightly thinner then AeroPro Drive makes it a bit more flexible.All round players with a varied game, broad strokes and good technique will take advantage of this racquet's precision.Upgraded with GT technology strengthens the frame to reduce torque for greater precision.Optimized feel when striking the ball with this new racquet equipped with the Cortex System.Head Size 98 sq. in.632.26 sq. cm Length 27 in 68.58 cm Weight Unstrung 10.8 oz Balance HL Beam Width 21.5mm21.5mm21mm Composition Graphite Tungsten Power Level Low Swing Speed Fast Grip Type Syntec String Pattern 1620 String Tension 55 62 pounds