The Wilson K Factor Kobra Tour FX Tennis Racket is a brand new player’s frame, designed to produce a solid feel, and accurate shot making. Featuring the latest control based FX technology, this stylish and powerful frame will add a new dimension to your game, and really give you the edge on court. The FX technology improves touch and feel in every shot by enhancing the feel by splitting the traditional throat beam in to a quad shaft; two split forks on each side. The benefit of this is to reduce the vibration that passes through the frame in to the arm, thus improving the players touch and feel. It also reduces the stress on the arm and the chance of developing tennis elbow.