JW Pet Grooming Rake Undercoat Regular DRIED Jump was developed by InClover’s W_SHELTER Jump was developed by InClover’s in house scientist to provide more than 1200 mg of active ingredients in just the right proportions to promote optimal joint support in your dog Slotted play balls with jingling bells Short Teeth are most effective on medium to large sized breeds with short haired coats while regular teeth are most effective on medium to large sized breeds with medium to long haired coats The JW GripSoft Undercoat Rake has a row of round tipped teeth that are designed to loosen lightly matted parts of the coat and to lift out dead and shedding hair from the undercoat