Hartz® Tuff Stuff™ Retriever™ Dog Toy. Perfect for tough tuggers! All new material. Polyester fiber. New material only. Content: Polyester fibers. Hartz Tuff Stuff™. Made from ultra-durable ballistic nylon, Hartz Tuff Stuff™ dog toys are designed for serious tugging. The tightly braided cotton rope runs the length of the toy for added maximum durability. Supervise your pet. For play only. Not a child's toy. Toy should be removed and replaced if excessive wear or damage occurs. Always select toys appropriate for your dog's chewing habits. Hartz and other trademarks are trademarks of The Hartz Mountain Corporation. For dogs 20 lbs and up. Visit our website www.hartz.com.