Stimulate your dog's mind with this interactive toy that releases treats (snacks) as a reward. A fun way to keep your dog engaged and stimulate his senses. Encourages mental stimulation. Reduces anxiety and boredom. Engages your dog's senses. The maximum size of the food in the dispenser is 15 mm. Game steps: Your dog releases the ball into the upper opening of the device. Then the ball slides from the front, while the food comes out of the side. The lever on the back serves to perform the dispensing function in manual mode.