Wilson's Slam JR 21 features a fun, youthful design with bright, vibrant colors. It's a lightweight and easy-to-handle tennis racket with performance-ready playability that's perfect for beginners. The AirLite Alloy aluminum frame provides lightweight durability with impressive strength. Frame technologies optimized for beginners make this racket stable, powerful and easy to maneuver, so new junior players can experience success every time they step onto the court. This pre-strung 21-inch racket comes tuned and ready to play. Recommended for players aged 5-6.