I have heard about the deer antlers. I HAVE to try those! My pits LOVE the solid bones I buy @ PetsMart. I don’t get the ones with fillers….too messy. They last FOREVER! I have EXTREME chewers…and these are the only chews/bones/toys that have satisfied their need to chew and they are only about 4$. They are sold individually….but WELL WORTH IT!