Developed with input from Stanislas Wawrinka, the VCORE Duel G 97 (330) is a very solid player's racquet. Like its predecessor (the Tour G 330), this stick is perfect for experienced ball strikers who want the rock solid stability and ball crushing plow-through of a traditional player's racquet. This model also features Yonex's new Tough G Fiber, a uniquely resilient material added to the frame's midsection to help the racquet return more energy to ball. Other updates include Yonex's new Lock Booster System - a technology that features tighter spacing between the upper cross strings (for control) as well as ridges in the grommet channels to increase power and comfort. From the baseline the Duel G 330 does not get pushed around. Big hitters who can deploy this racquet's mass will be able to drive the ball powerfully and accurately through the court. Thanks to Yonex’s time-tested Isometric head shape, this racquet’s compact 97in² head feels generous without sacrificing an ounce of precision. At net this stick plays fast for the weight, and there's easy depth to be had on block volleys. Finally, the Duel G 330 remains wonderfully steady when redirecting the pace of big serves. With this update, Yonex has delivered a formidable weapon to advanced players and strong intermediates. With its stable feel, easy targeting and ball-crushing momentum, the VCORE Duel G 97 is a very solid player's racquet. *This racquet is compatible with the Sony Smart Tennis Sensor.