Description Training dogs to interact with their owners to your feelings with dogs, reduce separation anxiety, promote proper chewing behavior and prevent bad behavior. This interactive dog toys' made of environmentally friengly and non-toxicplastic material. Feature - Color: Random Color. - Material: Rubber. - Size: about 6cm in diameter. - Great for medium and small sized dogs. - It is durable and safe, non , Uneven surface can massage the dog's teeth. - Best gift for pet: This fantastic ball is the great toy choice for your pet. - Cultivate your pet's concentration and increase IQ while they are left alone during the day. - Adjust difficulty level as your dog learns.Designed to be picked up and rolled, for dogs & cats. Great for medium and small sized dogs. It is durable and safe, non , Uneven surface can massage the dog's teeth. Best gift for pet: This fantastic ball is the great toy choice for your pet. Cultivate your pet's concentration and increase IQ while they are left alone during the day. Adjust difficulty level as your dog learns.Designed to be picked up and rolled, for dogs & cats.