1.double sided teeth- for tough mats and stubborn tangles use the 12 teeth side, then use the 23 teeth side for thinning and deshedding on any type of coats 2.rounded stainless steel teeth- the curved teeth will make grooming safe and easy, without hurting your dog or cause him skin irritation. the high-quality stainless steel teeth will easily work on the toughest tangles, knots and mats and will gently remove loose hair 3.ergonomic hand grip and thumb rest- get better control of your actions while handling tangles or de-shedding with the thumb rest. the ergonomic design with non-slip handle will make detangling, brushing or dematting comfortable for you as well 4.for all breeds 5.multifunction tool – it was designed to be used for dematting, de-shedding, as an undercoat rake and for massaging, thinning or as a brushing tool. improves blood circulation that leads to a shiny coat and will reduce shedding and removes dead undercoat (no more hairy situations around the house)