A: From top to bottom of hook
A: The hook measures 12 inches from the center of each curve in the hook.
A: Yes, it is 12" from the outside of the large bend to the outside of the small bend. In some situations one end works better than the other, depending on where it is hooked and what it is holding.
A: I wouldn't, especially depending on size of feeder you plan on using. I really don't think it would be stable enough, and, if a strong wind would come, it would be swinging back and forth and may even fall. I think the best anchor for this is an eye hook, or, plant hanging rod.
A: We recommend using this product to hold bird feeders from tree branches only.
A: Should work fine. I have mine on a shepherds hook but I also use them in tree limbs for plants.
A: Yes as long as it's secure.
A: Approximately 4.5", it will fit branches smaller than that width.
A: The largest part of the hoop at the top measures 5" across. The small end of the hook measures 2½" across. The largest part I could not measure a branch, so I measured the portion of my leg, just below the knee. It measured approximately 14 inches around. I hopes this helps you.
A: I would call your local store and ask a Sales Associate. I live in Arizona, and would not be able to verify current stock on hand. You can also order it online, and pick it up in the store within a few days, at no extra charge.