Product Description [With American local brand and appearance patent] This puzzle toy can improve pets' intelligence and promote their development, and the gameplay from difficulty level 1 to level 2 is integrated into one toy.The granary can hold enough food for one meal of food demand for large dogs. This toy can be used as a slow feeding utensil for pets. It can not only replace the dog bowl, but also help the dog develop the good habit of eating slowly and make the dog's stomach healthier. [Gameplay of difficulty level 1]There are 8 food boxes on two sides of the product and each of them has a upper cover. Add food into the food boxes, and the pet will find the correct boxes if they smell the food. By opening the cover of the food box, the pet can get the food. [Gameplay of difficulty level 2]The toy has a rotating food granary which can be removed. This granary can hold about 16.40 ounces of dog food. When the dog rotates the granary with its paws, the food will fall into the 8 food boxes below, and the dog needs to open the cover of the food box with its nose before getting food. [Adjustable food dispensing holes] Each food dispensing hole has a regulator. We can use it to close one or two food dispensing holes to increase the difficulty for dogs to get food. We can also control the speed of the leakage by adjusting the size of the food dispensing hole. This design can increase the difficulty of pet's intelligence training. After a long period of training like this, the dog will become smarter and more stable in character and mood. [Safe material and design] The product is made of food-grade ABS without any Bisphenol A, PVC and Phthalates, which completely protects your dog's health, so you can let your dog use it without concern. The toy is very strong and durable, resistant to bite and scratch and will not deform.