My guy weighs 12 pounds so he's a big boy, I give him 12 inch regular thickness bully sticks also. I throw them away when they are down to 3 inches, it's still to big for him to swallow but better safe then sorry. I did try the antler, he wouldn't go near it, I wouldn't advise anyone owning a small breed dog to give them antlers, they are very, very hard, my concern would be in them breaking a tooth or two.
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