Fetch: Teach your dog to fetch by themselves. Interactive dog training machine: Get an interactive dog training reward machine. Tennis ball: Includes a tennis ball. How to play: Your dog fetches the ball and drops it in the machine then the machine rewards it and rolls the ball out again. Easy to use: Allows your dog to play by itself! Takes no space: Can be placed indoors or outdoors. Safety: Motion and safety sensors are able to detect and protect all users. | Interactive Dog Fetch Training Machine | Wowcher