Environmental Protection & Durability - This interactive dog toys' made of environmentally friengly and non-toxicplastic(TPR),ensure your dog can play and chew it safely.Easy to clean. Increases IQ - Rosmax IQ Treat Dog Toy keeps your dog mentally and physically stimulated as they figure out how to retrieve treats. Outstanding Design - Through its unique pattern design, it helps clean your dog’s teeth as their having fun.As your dog plays and the rolls the ball, treats will fall out to reward them for being active. Healthy Feeding - Fill the ball with your dog's favorite treats or food and it'll spill out while playing,to promote active and healthy feeding.Notice:Dog food is not included. Purchase Guarantee - If you find any question let our high efficiency, friendly and responsive after-sales team know and we'll solve it in time.