An industry standard for professionals since 1966, the original jeanie rub delivers invigorating 600 - 4600 RPM massaging action with a twist of the switch. The orbital action provides a softer and deeper massage than "percussion" Type Massagers. Lower speeds deliver a soothing massage while faster speeds are more invigorating. All jeanie rub Massagers are built in the USA to ANSI standards and are CSA certified, ensuring they have been evaluated to meet or exceed consumer safety standards. Materials 100% polyester.