HEAD's junior racquet series makes it easy and fun for kids to dive into tennis. The Instinct 23, built with lightweight and durable aluminum O-beam construction, is perfect for beginners ages 6 and up who are between 45 and 49 inches tall. It's easy to handle, comfortable to swing, and designed to build confidence with every hit. A great choice for young players ready to rally and grow their love for the game. Weight (unstrung): 215 g / 7.6 oz String Pattern: 16/18 Head size: 630 sq. cm / 98 sq. in Balance: 280 mm / 0.5 in HL Length: 585 mm / 23 in Beam: 20 mm Age: 6+ Model Number: 233242