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