4-Pack Elk Antler Dog Chew (Split, Mini (12 lb or less dogs)) What you get: 4 mini split elk antler dog chews. Guaranteed length: 3.5" to 4.5"; perimeter: 1.5" to 2"; recommended for dog 12 lb or less dogs, gentle chewers Product of USA; natural and full of nutrition with no growth hormones, antibiotics, or preservatives. Naturally shed antler, meaning no harm was caused, ever, to the animal it comes from. An excellent source of calcium, phosphorus and protein for dogs: protein 38%, calcium 18% & phosphorus 9.9%.