This bundle includes a Wilson Roger Federer Junior Tennis Racquet (avaliable in size 25, 23, or 21) and a Grey Junior Tennis Backpack The Wilson Roger Federer Junior Black/Red Pre-Strung Tennis Racket is an excellent choice for beginner tennis players looking to break into the junior ranks and develop their game. Boasting a responsive, lightweight feel with an aerodynamic frame for a comfortable swing, this racket is an excellent choice for young players as they learn the fundamentals of the sport. They will be inspired to play just like their favorite pro, Roger Federer!</b> It comes in (3) sizes for kids: 21' (ages 5-7), 23' (ages 7-9), and 25' (ages 9-10). This kit or set is bundled with a Wilson Junior Collection Grey Tennis Backpack to help them keep all their gear organized during and between lessons. RACQUET SELECTION: 19-inch racquet for children ages 2-4; 21-inch racquet for children ages 5-6; 23-inch racquet for children ages 7-8; 25-inch racquet for children ages 9-10 and beginners up to age 12 BAG FEATURES: Perfect for kids just starting out in tennis, this junior backpack holds up to 2 junior rackets and includes another compartment with interior pockets for apparel and smaller items. These perfect back to school backpacks hold up to 2 junior rackets. It features (1) 2-junior racket compartment and (1) main compartment with interior pockets for personal storage. Backpack dimensions: 11.5' x 5' x 15' / 29cm x 13cm x 38cm.