The pre-strung MX SPEED NOVAK comes in an entirely new design with increased power and control. The perfect racquet for adults and teenagers who are enjoying their tennis and improving their game. Weight: 275 g / 9.7 oz String pattern: 16/19 Head size: 645 cm² / 100 in² Balance: 340 mm / 340.0 in Length: 685 mm / 27.0 in Material: Graphite Composite The Head MX Speed Novak Tennis Racket is perfect for upping your game. This racquet will make sure that your first steps on the tennis court won't be your last. Crafted with shock absorption technology and made in a design that provides comfort, this is a must have addition to your racket. Weight: 275 g / 9.7 oz Head Size: 645 cm² / 100 in² Length: 685 mm / 27.0 in