The Fitness Is Function Sandbag DVD focuses on combining a variety of multiplanular sandbag movements with a timed workout set scheme to give you fantastic gains in strength and conditioning. Unlike typical workout implements, the sandbag’s weight shifts and moves when you do, creating a much more dynamic and challenging workout. It requires you to utilize a variety of stabilization muscles that wouldn’t typically be used for basic lifts, especially for higher repetitions. Learn more about this sandbag workout dvd.