The Head YouTek IG Instinct S tennis racket is a lighter version of Maria Sharapova's frame and provides perfect combination of power, feel and comfort. It features even balance, 270g weight and 660sq. cm. head size. The string pattern is 16x19. The Head YouTek IG Instinct S tennis racket offers D30 technology that provides a smart material, which allows a soft touch on volleys and drop shots but also stiffens the racquet when extra power is needed. The Innegra fibres that are the lightest high performance fibres available on the market improve stability and shock absorption. The DuPont Teflon grommet system reduces friction and increases power. The racket is ideal for competitive intermediate players with aggressive, long strokes.