Natural materials are essential for dog health. 100% pet safe and durable! Made of soft natural rubber, the dog toy is good for your dog’s gums and teeth growth.^ The UFO treat toy is designed to make your dog ingest food through exertion. This concept is actually a great way to provide your dog with a fun and exciting way of training. Avoid overeating and encourage physical activity.^ The UFO dog ball can keep you and your dogs entertained for hours, keeping your dog mentally active and bringing the fun back into play.