Get your child off to the right start with 10 and under tennis from the USTA. All the tennis gear needed for ages beginners ages 5-10 to get started in tennis. 10 and Under Tennis using the QuickStart Tennis play format takes a new and better approach to introducing kids to the game. Balls are lower in compression; they bounce lower and don't move as fast so they are easier to hit. This allows kids time to get to the ball and helps them develop optimal swing patterns. Racquets are sized for small hands, and the courts are smaller and easier to cover. All that equals more fun and less frustration. Full sized courts can be reconfigured to accommodate up to four 36-foot courts, so instead of waiting in line, kids can spend their time playing. 10 and Under Tennis follows the same logic as other youth sports like baseball or soccer: kid-sized courts and kid-sized equipment. The benefits are immediate. Within an hour kids are rallying, having fun and psyched for more. They're playing tennis and having fun!