Two toys in one: a 4" plush animal-head ball with a 2.5" spiky squeaky ball hidden inside it. Dogs work out there is something in there and go after it, which is most of the appeal. Reinforced mesh fabric, polyester shell with recycled-cotton stuffing made from plastic bottles, and a TPR ball inside. Yeti. Good for indoor fetch, sized for small to medium dogs. Spot clean.