Adopts non-invasive treatment manner and exactly convey “frozen role”to fat gathering place to remove intractble fat cells. According to search of Massachusetts Boston General Hospital and Harvard Medical School dermatology specialist in America, fat cells are easier to be affected by frozen role, comparing to nearby tissue. Fat cells will solidify and decomposite at 4℃. But other nearby cells will die at 0 ℃. So it can safely remove fat cells, at the same time, not hurt skin and nearby tissue of fat cells.