On neck-1pair unique super flexible observe/reverse kneading massage balls. On back&waist-3different protruded height functions in 12 kneading massage balls.Microcomputer controlled speeds of kneading mechanism. On waist-2 strong anti-interference magnetic vibration motor. On buttock-1 strong anti-interference magnetic vibration motor. On thighs-4 kneading massage balls. On calves-a unit combines of squeezing,kneading,rolling and pressing mechanism.