1 - Pet toy with food distribution function - The toy has both an entertainment and food distribution function, which gives dogs more joy when playing. The food distribution function helps dogs develop a slow eating habit and maintain their digestive health. Dogs can receive food rewards during play, which appeals to both their brain and their bodies and promotes their intelligence and brain development; 2 - Food distribution function - The toy has different sized balls at both ends. When dogs push the toy, it moves within a fixed area, so dogs can constantly play and chase with it. During movement, food is dispensed from the feeding holes on both sides of the toy; 3 - Adjustable feed output function - Each of the two balls is equipped with a feed output switch and is suitable for different sizes and types of dry food, jerky or snack biscuits for pets. The switch can be adjusted to the different sizes of dog food. It also allows control over the amount of food spent, thus extending or shortening the time the pets receive their food. 4 - Function of the puzzle toy - Dogs can smell the food through the dispensing holes. You can use their noses or paws to move the toy, and when the toy rolls, the food is dispensed and the animal receives a food reward. This process helps train intelligence, consume excess energy, stimulate the mind, provide mental enrichment and put bored dogs into physical activity; 5 - Safe material and design - The raw materials of the product do not contain bisphenol A, PVC or phthalates. It is made of food-grade ABS, which ensures complete protection of your dog's health. You can confidently leave it to your dog. The product is sturdy and durable, resistant to damage by pets; 6 - This toy is easy to use and requires no additional installation process. It is suitable for dogs of different sizes and can also be used by some cats.