Barkworthies Hand Selected, Naturally Shed Split & Whole Elk Antlers - Premium Long Lasting, Odor Free Dog Chews for All Dog Sizes and Breeds - No Chemical Treatments, No Added PreservativesNaturally Made: Shed by roaming elk, Barkworthies elk antlers are hand selected, cut, and sanded down to a premium, safe sized chew for your dog Supports Healthy Smiles: Chewing action required to reach the flavorful marrow center helps to naturally scrape away plaque and tartar from the gumline Premium Chew for Power Chewers: Elk antlers have an outer core that encases the rich marrow center, a perfect challenge for dogs who are aggressive to power