The Tratac Active Ball is a vibration device whose high intensity serves to relax muscles and fascias. With its compact size, it is easy to carry; it offers three vibration levels that can be changed by pressing the power button. In the form of a peanut, the Active Ball has the optimal shape to address the difficult to reach stabilizing muscles on the vertebrae and spine. The 4-mm thick silicone layer ensures outstanding elasti-city, thermal stability and padding when rolling.