Meet the ShoulderHorn: a rotator cuff training tool that strengthens your body and eliminates shoulder pain in just a few weeks. It locks your shoulder and arms to train the shoulder in an abducted external rotation. The device features steel tubing with foam padding.
As you can see in the above video, this device isolates and strengthens the muscles of rotator cuff. Whether you are a baseball, tennis, or football player, a device like this can help you combat shoulder pain. Sets you back under $100 at this time.