Cannonball
The Cannonball, is the new, quickest, and easiest way for rehabilitation, therapy, strengthening, toning, and warming-up of the shoulder and arm muscle's, and it's also just fun to play with. Used by Professional Athlete's, Sports Doctors, Sports Trainers, Coach's (of all level's), and men, women and youth (ages 12 up), The Cannonball can be used for all sports that require the use and rotation of the arm's and shoulder's, such as baseball, softball, football, racquetball, tennis, swimming, etc
