Nylabones are safe for strong chewers as long as you choose a toy of the correct size and chew strength for your dog’s size and weight. If your dog is on the cusp between two weight classes, size up to the larger toy to make sure it's big enough to withstand your pet’s powerful chewing. Watch your dog closely the first few times it plays with its new Nylabone to make sure the toy is sufficiently strong and your dog isn't able to tear it apart.