MarrowBones are durable man-made dog bones that provide hours of enjoyment and chewing satisfaction. Nylon ridges are formed when your pet chews the bone. These ridges help remove tartar by working like a toothbrushâ€™s bristles. The tasty 'jerky' meat flavour in the centre of the bone is an extra treat, designed to constantly encourage your dog to chew, therefore providing days of enjoyment and chewing satisfaction! For even the toughest dog, they last for ages! Available in five sizes to suit all breeds of dog, they are also great for teething puppies.