This style of chew is cut from the beam of an Axis antler. The beam is the middle part of the antler that is in between the base and the tine. Axis is the most dense antler that we sell because it contains no marrow in the center. Since the antler is so dense, it will last your dog for months! If your dog loves to chew, and can chew through anything, we recommend that you give this antler a try.