Features Tasty treat your dog will love Kangaroo tail bone Suited for medium dogs Keeps your dog busy Chewy bone Pieces of dried meat attached Packed full of lean protein/vitamins The Blackdog Roo Tail is a delicious treat for your furry friend. About 15-20cm long and 4-6cm in diameter the roo tail is most suited for medium dogs and is guaranteed to keep them entertained. The Blackdog Roo Tail is a chewy bone surrounded by lean meat making it the perfect tasty treat. With a rich source of lean protein and vitamin packed bone marrow, roo tails contain less saturated fats than other bones so are ideal for dogs who cant stomach fatty foods well.