They are low in fat, and high in nutrients such as calcium, to keep their bones strong. In addition, they easy to chew to keep your friend entertained. Consequently, chewing on the tails gives your dog a gum massage that will improve dental health. These are long lasting treats for Small to Medium Dogs. 100% Australian Kangaroo Tail. Product of Australia: Manufactured in Australia using 100% Australian Kangaroo Single-ingredient product with no additives or preservatives. Simply dehydrated to remove the water content and lock in the nutrients. Minimum Protein % : 50. Minimum fat 10%