HEAD Radical 25-Inch Junior Tennis Racquet HEAD's junior racquet series helps kids to get started on their exciting tennis journey. Perfect for kids between 8 and 11 years old depending on their height. Racquet comes pre-strung by the manufacturer and includes racquet cover. Weight (unstrung): 240 g / 8.5 oz String pattern: 16/18 Head size: 680 cm / 105 in