These dog chew toys for aggressive chewers are made of durable food-grade nylon and edible cowhide, which is reliable and safe for dogs to chew. They are strong, sturdy and long-lasting. The flavor of the cowhide stays with the nylon inner bone, thus promoting chewing long after the cowhide is gone. This bone helps clean your dog's teeth and reduce tartar and has an interesting curved design. They are suitable for most breeds and meet the needs of dogs of all sizes including large dogs.  The bone offers a balance between challenge, entertainment, and a great taste to keep your dog entertained for hours.