No chew bone is 100% safe, but some are especially detrimental to our pets’ health. Chew bones made of plastic, nylon, or rubber are particularly harmful to canines with extra-strong jaws. Know that large and powerful breeds can wreak havoc on even the toughest of dog toys. If by chance your dog gets to ingest some bits that fall apart from the toy, it would cause choking, gastrointestinal obstruction, or poisoning. That is why I recommend that you buy only edible ones for your pet.