Great Dog 2, 9" Split Jumbo Elk Antler Chews (Sourced & Made in USA) Great Dog 2, 9" Split Jumbo Elk Antler Chews provide the best of both worlds--tons of long-lasting chewing enjoyment and easy access to the tasty marrow like substance inside the antlers Sourced from Colorado, Montana, Wyoming and Idaho, elk antlers are long lasting, even for the toughest, most aggressive chewers with Split Jumbos often favored by dogs, particularly puppies and seniors, allowing them to easily access the yummy, nutrient-rich marrow like substance inside Great Dog Elk Antler Chews provide 40 essential minerals, amino acids and other nutrients including calcium, zinc, manganese and potassium while helping to reduce the tartar build up on your pet's teeth Elk Antlers are much less likely to chip or splinter than other types of bones when chewed A renewable resource--antlers grow back every year and are naturally shed