Original DEER Antler is a delicious and nutritious dog chew. Only 100% naturally shed antlers are used; no animals are harmed in the making or collecting of this product. With Original DEER Antler, you’ll find all the benefits of raw bone chews. These antlers are hypoallergenic and provide a rich source of protein and phosphorus. If you have experience with short lived chews, these chews will surprise you with just how long they last. They typically last 2-4 weeks, and, best of all, leave no stains and are odor free.100% natural shed antlerlong LastingRich in CalciumHypo AllergenicStain and Odor FreeMeasure between 4.5" - 7"