Cannonball. Weight training softball. 1lb.
The Cannonball is easy to use with a friend for a quick warm-up before the game or alone against a wall. Using The Cannonball develops your arm and loosens the key muscles, preventing injury to your arm.
Over training sessions with The Cannonball, your arm will develop throwing power and add strength for long throws from the outfield. The Cannonball will help condition your arm during the off-season. Recommended for quick warm-ups for throwers age 12 and up, The Cannonball will build muscle in your throwing arm and help prevent serious injuries in high school, college, and even professional ballplayers.
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