The Nylabone Power Chew Action Ridges Chew Toy Bacon Medium/Wolf is made of durable nylon and is designed to last. This toy is perfect for medium sized dogs who have a hard time chewing through tough foods. The ridges and nubs help to keep your dog from damaging their teeth while they’re chewing. The bacon flavor is irresistible to any dog, so this toy will be a favorite for many pets.