The Prince EXO3 Blue tennis racket is specifically great for players with shorter, slower strokes who need assistance with power in their game. A large head size and lightweight frame enhance head speed and ball spring from the bed, to produce additional power and flexibility. Energy Bridge - The revolutionary idea behind EXO3 is the patented Energy Bridge, an exo skeletal structure that suspends the string bed from the frame, increasing virtual head size for up to an 83% larger sweet spot. In addition, frame vibration is reduced by up to 50%. The net effect is a more forgiving frame, with added feel and control. Energy Channel - Enhancing the dynamic effects of the Energy Bridge, is the patented Energy Channel. This is a sculpted groove within the frame that the Energy Bridge sits in, and provides added stability, boosts ball control and increases spin by up to 25%. Comes complete with a full length protective head cover.