Are you ready to step up your baseball game to the next level with a practical set of training balls perfect for use with both metal and wooden bats . these premium hard training balls are sure to improve your swing . develop some strength . and improve your overall game. These training balls have an authentic design and will allow you to practice your game just like your favorite big leaguers. This package comes with two red curve balls so you can even work on your off-speed pitches. From little league to the big leagues . these training balls are perfect for players of all abilities and will allow you to step up your game to the next level.