I haven't been able to find a source for top quality full knuckle bones in the last few years. So glad I stumbled upon Foundation Raw. These are huge and have plenty of meat and sinew on them for the dogs to rip and tear, which is so good for their teeth and gums. I let my Labs chew on them for about an hour, then pop them back in the freezer and let them have them again a few days later. Good value for the money and the customer service is exceptional.