Our Bison Marrow Bones are an ideal choice for medium-intensity chewers. Ethically sourced from free-range, grass-fed US bison, these bones are slow-baked to reduce the risk of splintering. The tasty marrow is high in nutrients, including collagen, iron, and B Vitamins. Collagen can help to improve skin and coat and digestive health, while iron and Vitamin B help to keep your pups energized and healthy. These odorless bones also provide dental and mental health benefits.