My fave to use on dogs with an undercoat. If you have a dog that sheds a lot..this is the brush to use. No pins that will scratch their skin, it's a doggie massage/groomer that actually works!! I even use it while giving my dogs a bath to get the doggie shampoo to the skin. They love it. When I first saw it, I thought to myself, "this will not work". Wow was I wrong!! Gentle on your dog, ergonomically shaped for ease of use, and EFFECTIVE :) I bought two.