Wilson Slam JR 25 Boys TNS RKT 3 7/8 Tennis Racket Properties: Wilson Slam JR 25 Boys TNS RKT 3 7/8 Tennis Racket The Wilson children's racket is perfect for recreational tennis games. AirLite Alloy technology creates a lightweight and durable design. Aluminum construction. Technical data: Age: 8/10 years or height 135-150 cm Handle size: L0 (3 7/8) Material: aluminum Racket weight (unstrung): 205 g · Racket length: 63.5 cm - 25” · String pattern: 16x19 in · Balance: 30 cm · Head area: 683 cm² / 106 in²· Wrap: Factory· Factory tension: yes