Help people to exercise in room and sit, without too much consumption of energy, especially good for fat people whom is too fat to exercise, and the one whom have weakness in knee or feet, it is obviously popular with women.

The wriggling movement in waist and abdomen of human body, will lead to the intestines and stomach squirm in rhythm, to eliminate dyspepsia and anti backbone disease, the massage on the fundament will across sexual desire, it is also good for sexual use. Eliminate the fat of abdomen and waist.