We used to buy these in local pet supply stores. The supply stores stopped carrying them. Was happy and excited to find them on Amazon. So were our dogs!You need to watch dogs closely when they chew these and remove the bone once it is small enough for the dog to swallow it (two inches by two inches). Some of our dogs have chewed off and swallowed parts of the bone. Some have even swallowed large chunks. One had to have stomach surgery to remove the large chunk that didn't pass through. Some of our dogs just chew and spit out any chunks or pieces they chew off of the bone. Depends on the dog.