Rubber and Food Grade Nylon: The large dog chew bones are made of FOOD GRADE NYLON & RUBBER. Which would not be brittle into pieces or broke into halves. This beef flavor doggy chew satisfies your dogs chewing instincts. It is a good dog gift or dog birthday toy for your fur baby. Tooth Cleaning Function: Chewing help your dog teeth cleaning, keep jaws strong and gums massage, effectively promote oral health by gnaw or bite. And helps reduce discomfort during teething period. Delicious Appearance: Designed with the bone shape and beef flavor, dog chew toys for aggressive chewers are definitely a huge attraction to every drooling dog. It helps to release their excess energy and save your shoes, sofa and other stuff from paws and tooth. Interactive Dog Toys for Medium Large Dogs With Beef Flavor: This dog toy is an ideal interactive dog toy for fetch and retrieves games. rubber with beef flavor can greatly excite your pet and extend the playing time. It will do a lot of help to release the dog's pressure, cultivate your dog's trust and understanding, and reduce destructive behavior.