The KONG ZoomGroom for Dogs and Cats massages and grooms at the same time. The soft, plastic fingers are a magnet for loose hairs. Regular grooming with the KONG ZoomGroom can help condition the skin and reduce hairball formation in cats. The gentle massage action calms stressed or anxious dogs and cats, especially in potentially traumatic situations such as veterinarian visits. Firm and flexible 3/4″ plastic teeth reach through the coat to massage the skin.