The FURminator deShedding Tool is guaranteed to reduce shedding better than any brush, comb or rake, up to 90% in long-and-short haired dogs and cats. The patented tool features a stainless steel edge that dramatically reduces shedding at its source (the undercoat and loose hair), and is used and recommended by pet professionals worldwide. The patented FURminator deShedding Tool quickly and easily removes (it doesn't cut) the loose, dead, undercoat hair that is the underlying source of shedding. The tool's unique stainless steel edge grabs loose undercoat hair and removes it without damaging the topcoat.