Barkworthies naturally shed elk and deer antlers are dense, durable dog chews that will give your dog hours of chew time. Naturally roaming elk and deer shed their antlers yearly, which are simply collected, thoroughly cleaned, and cut to a premium size perfect for your dog. Antlers are a long-lasting premium chew that are odor-free and low-mess. Barkworthies Split Antlers feature an exposed marrow center. Split antlers are perfect for teaching dogs safe chewing habits, as they associate the chew with the tasty marrow center.