Canadian Brand. Beef Marrow Bones are a rich recreational chew. They come in medium and large so you can pick the appropriate size for your pet. Including Raw Meaty Bones in a dog's diet will provide many great benefits like, clean white teeth, increased neck, jaw and shoulder musculature. Plus, they're a great way to keep your pet busy and stimulated. Raw meaty bones can be used as meal replacements or meal toppers in any dog's diet.