The Fix Train Perform 120mm ball is a high quality soft tissue release tool. Perfect for creating maximum amounts of tissue shear force with it cleverly designed knobbly surface. This will not only service your subcutaneous fascial layers but allow you to get great leverage of your bodyweight into those deeper tissues too. Iliopsoas (hip flexor), Gluteals and Hamstrings to name but a few. The 120mm ball comes with a handy nylon carry bag to protect it when on the move in your kit bag.