Wilson Slam Junior 19 Boys TNS RKT 3 1/2 Tennis Racket Green WR172110U This Wilson kids' racket is perfect for recreational tennis. AirLite Alloy technology creates a lightweight and durable construction. Aluminum construction. Specifications: Age: 2-4 years or height 89-102 cm Grip size: L0 (3 1/2) Material: Aluminum Racket weight (unstrung): 168 g Racket length: 48.3 cm - 19” String pattern: 16x17 in Head size: 529 cm² / 82 in² Grip: Factory Pre-strung: Yes