Rollover Large Lamb Stuffed Beef Bones are all-natural, cleaned beef bones that are stuffed with our premium Lamb dog food and baked for your dog's enjoyment. Beef bones, the hardest available, are a good way to satisfy that natural urge to chew and with a centre of delicious Rollover Lamb dog food, dogs will work to get at the tasty middle, making this a longer-lasting chew.