[Dog Puzzle Toy from the United States, an American Brand with a U.S. Patent]This innovative design doubles as a slow feeder. With three integrated difficulty levels, it offers gameplay ranging from Level 1 to Level 3, all within a single toy. The difficulty can be adjusted to suit your pet's individual needs and training progress. This toy helps alleviate boredom, enriches your dog’s daily life, enhances intelligence, and supports digestive health. [Safe Design and Materials] This toy is made from food-grade ABS is completely devoid of BPA, PVC, and phthalates. The exceptionally durable construction ensures extended playtime. [Stimulating & Alleviating Anxiety] As dogs play with the toy and receive food rewards, the game encourages them to think, simultaneously exercising their brains and bodies, promoting brain development. The process of obtaining food can stimulate the dog's spirit, relieve anxiety, and stabilize their character, helping them integrate better into family life.