I think I've seen this product advertised on T.V., but I bought mine at a local pet food store. If you have shedding pets, dogs or cats, this tool is incredibly helpful. I have a German shepherd, which is heavy shedding breed, and the Furminator is excellent for helping to remove the undercoat, especially when that time of year comes when they really start to lose it in clumps. I used to use it on my cat as well. If you are like me, and despise having any loose fur hanging out in your house, this tool is great way to prevent too much from accumulating. if you give your pet a good "once-over" weekly, it will help cut down on excessive shedding. OOps - tried to edit title, but I can't. It should be the Furminator.