Wilson Slam JR 23 Boys TNS RKT 3 5/8'' Tennis Racket Red-Navy WR171910U Properties: The Wilson children's racket is perfect for recreational tennis games. AirLite Alloy technology creates a lightweight and durable construction. Aluminum construction. Technical data: Age: 7/8 years or height 119-135 cm Handle size: L0 (3 5/8) Material: aluminum Racket weight (unstrung): 185 g Racket length: 58.4 cm - 23” String pattern: 16x19 in Balance: 28 cm Head area: 612 cm² / 95 in² · Wrap: factory Factory tension: yes