Extra wide full coverage head with built in mini nodules for use on legs and arms (please note this head may differ from photo). Second, meet our three pronged head that feels like a therapist fingers applying deep acupressure while working out a knot. Finally, our large impact head with pressure point nodules that takes the traditional smaller flat head to the next level.To Learn More: https://youtu.be/ZNLWb3MsfyU