the jw bamboo stick is a durable, natural rubber dog toy that's the perfect shape for throwing, fetching, & carrying. a solid center makes this stick capable of standing up to endless games & intense chewers. the bamboo stick has open ends that can be stuffed with treats or peanut butter. realistic detailing will convince your dog that he has finally found a stick that will last! natural rubber solid center to stand up to endless games & intense chewers