Big Sky, Large, Antler Dog Chew, Made Of All Natural Elk Antlers, Help Whiten Teeth & Freshen Breath, Are Allergy-Free & Organic, Safe For Any Dog, Will Not Splinter, Safer Than Bones, Supports Bone, Joint & Muscle Health, A Natural Source Of Essential Minerals Such As Calcium, Glucosamine, Iron & Potassium Aids In Kidney Function & Improved Wound Healing, Helps Whiten Teeth & Freshen Breath, Last Longer Than Rawhide.