Rollover Beef Stuffed Beef Bones are all-natural, cleaned beef bones that are stuffed with our premium Beef 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 Beef dog food, dogs will work to get at the tasty middle, making this a longer-lasting chew. Small size :Each bone is approximately 5-6" long and 2" in diameter and is individually shrink-wrapped to ensure freshness.. Larger size: Each bone is approximately 8-9" in length, 2.5" in diameter and is shrink-wrapped for freshness.