Pet Qwerks-Medium Antler: Liver. Duplicated from real elk and deer antlers! Nylon antlers provide a safe and satisfying chewing experience while helping to lean your pets teeth and freshening breath. Your dog can now enjoy the antler chewing experience without the shards or sharp points of natural antlers. No added chemicals or preservatives. This package contains one 4-1/4x2x1 inch medium antler. Imported.