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. The CANNONBALL can be used by both men & women (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. When used properly the CANNONBALL has many benefits.
The CANNONBALL, has been seen, and used by Professional Athlete's, Sports Doctors, Sports Trainers, Coach's (all level's), and men & women athlete's. These are some of there comment's. testimonials
