Barkworthies Hand Selected Naturally Shed Extra Large Whole Elk Antler (Single Antler) - Long Lasting, Odor Free Dog Chew for XL Breed Dogs - 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