It uses a combination of long, gliding strokes, kneading, friction, tapping, and shaking movements to achieve these effects. https://trole.us/%EC%8A%A4%EC%9B%A8%EB%94%94%EC%8B%9C-%EA%B0%95%EB%82%A8-%EC%8B%AC%EC%8B%A0%EC%9D%98-%ED%9E%90%EB%A7%81%EC%9D%84-%EC%A0%9C%EA%B3%B5%ED%95%98%EB%8A%94-%ED%98%84%EB%8C%80%EC%A0%81%EC%9D%B8-%EB%A7%88/