Flexible and easy-to-use tool for relieving muscle tension all over the body. Tip: Diagram showing how to use the different degrees of strength at the corresponding trigger points on the back is also included in the product. application: To address the trigger points, lie quietly and relaxed on your back and place the fascia massage ball with the appropriate strength level under the appropriate point on your back. Then move your body back and forth a bit as slowly as possible. The fascia massage ball can also be used on areas of the body such as the gluteal muscles, the undersides of the feet, the arms and hands by slowly rolling out the muscles while sitting, standing or lying down.