As a keen observer of animal behavior, and a former equine dentist who paid a lot of attention to the poll area (where the head meets the neck) of horses through her work, SleekEZ® creator Jennifer Tipton noted that animals scratch and lick themselves through motion of the poll. And, animals do seem to like how it feels. After all, horses, dogs and cats often affectionately groom one another. For this reason Jen designed a grooming tool with and oval handle that rolls in your palm(s) This natural motion over the animal's body is soothing and affectionate. Our tools have no sharp teeth or prickly tines irritating the skin. SleekEZ's grooming tools have a unique tooth configuration of teeny, tiny teeth that do not contact the skin in most situations but when so it provides a pleasing scratch. Because of the ideal tooth pattern and configuration, these patented grooming tools work on a variety of coats; fine to thick and long to short (though more ideal on medium- and short-coated dogs) to quickly remove all shedding hair plus dirt and dander. There truly isn’t any other grooming tool on the market that makes any shaggy coat sleek within minutes with this much ease, comfort and affordability.