I have purchased Yellowstone Elk antlers for quite a few years now. My two German Shepherds have very high drives and are very powerful chewers. Cinder and Cyrus LOVEEE their Yellowstone Premium Elk Antlers and I am confident I am giving them the best quality chews with your naturally shed antlers. These antlers last a while, even with my two tough knaw'ers! I'm sending along a photo of my girl Cinder with her Yellowstone Elk Antler that she received for her 8th Birthday. She says "Yellowstone Elk Antlers are my favorite, paws down!"