BarknBig offers the economy bone in Bison for all you bone savvy shoppers out there looking for exotic free-range, grass-fed bones. The 3" bone is completely usable - no marrow left behind! You get the best bang for your buck with this natural, healthy marrow bone. Nutritionally, the marrow keeps our dogs' skin and coat healthy with nutritional fats and provides vitamins and minerals formulated treats cannot. Oral hygiene can keep our furry friends healthy. Bones scrape the plaque and tarter off the teeth, helping keep those pearly whites clean. Say hello to nature's toothbrush.