The Pro Staff 97 Countervail combines the sleek look of Roger's new Pro Staff RF97 with the enhanced precision, consistency and energy derived from Countervail. The next evolution of ultimate performance has arrived to the Pro Staff franchise. Lighter weight version of Roger Federer's Pro Staff RF97 Autograph racquet. Intermediate and advanced ball strikers looking for a speedy player's racquet with controllable power and amazing feel will not be disappointed here.ABOUT PRO STAFF: Pinpoint precision. Supreme class. Quintessential feel. Continuing in the vein of Wilson's new design DNA featuring bold and elegant frames, the new Pro Staff puts a twist on the wildly popular black models. In the words of Roger Federer, the tuxedo racquet has found its shirt. Flashing a white matte finish at 3 and 9 o'clock, this racquet combines a sleek look with the classic control and feel that tennis players around the world have come to love. The next evolution of ultimate performance has arrived to the Pro Staff franchise.