This package of 6 Total Control Batting Ball has been designed to develop maximum strength and drive through the hitting zone. They are must have tool for all fastpitch players, coaches, and teams. Each ball has a 3.2 inch diameter and weighs approximately 425 grams and can be used for both front and side toss. The weighted design starts out slowly with only 3 to 6 solid hits and increases to a maximum 18 to 24 in one hitting session. It provides instant feedback for the hitter.