Introducing a new Elk Antler product from Best Bully Sticks! These are called Elk Antler Burr Dog Chew. The burr is the part of the elk antler that is directly attached to the head. They are round in shape and sit flat at about 2" diameter per piece. Because the elk antler burr is the point at which the antler attaches to the animal's skull, nature creates it to be virtually indestructible. This makes it great for the most aggressive chewers and even old dogs alike. Dogs of all sizes love them.