This is a natural Kong, it is a round ball of bone marrow so it rolls around as the pups play with it and eat it. Pups love them, and they are nice and stimulating.
Chews are made from dried bone marrow. We boil the bones to collect all the bone marrow, we then dry it for 3 weeks to turn it from liquid marrow to a hard chew. Awesome dental chews and highly nutratious as they are full of bone marrow goodness.