Smart Karda 1-row with rolling teeth is suitable for trimming breeds with long or medium length coat and undercoat.The flexible rolling teeth follow the shape of the body and gently remove loose undercoat without damaging the topcoat or skin. At the same time, it straightens out tangles and improves air circulation in the coat.The card is available in two sizes: Narrow for small to medium breeds with long or medium length coat and undercoat (e.g. Shih Tzu, Collie, Australian Shepherd). Wide fits larger breeds with similar coat type (e.g. Tervueren, Bernese Mountain Dog, Briard).Facts about Smart Karda 1-row with rolling teeth:For trimming breeds with long and medium length coats and undercoat. The rolling teeth mold to the body. Removes undercoat without damaging fur and skin. Straightens matted fur. Available in two sizes.