Many dogs have problems eating too fast, leading to vomiting and other stomach problem. Our U.F.O. is designed to force your dog to eat slowly and alleviate these issues. Each feeder is a top shaped inverted bowl that gently spins and moves as your dog eats. A silicone cover with small holes prevents your dog from eating too quickly, and a maze shaped surface keeps food from collecting in one spot. The UFO is also perfect for dispensing treats and keeping your dog busy for hours. Designed for small and medium dogs.