Bullet point:1. Automatic design: No need of electricity, automatic feeding, interactive toys, your dog will like it very much.2. Dog's favorite game: When your dog puts the ball in, after the launch, the food will come out automatically.3. Keep pet busy: Even if you are very busy, it can help your pet stay healthy and energetic, relieve stress.4. Space saving: Easy to place indoors or outdoors, suitable for free corners.5. Reward machine: 6cm elastic tennis ball, suitable for pet of different ages. With removable physical disk on both sides, it is clean and hygienic.