Aunt Becky is a flat piece of folded metal that you hold in your 'bottom' hand to reflect the needle back up when hand quilting. Clear as mud right?
I have one and haven't been able to get the hang of it yet. I have been using the UnderThimble and I LOVE it. Much easier to work with. Nothing to have to hang on to. With my UltraThimble, UnderThimble and my quilting fingers I can really fly with my hand quilting. Now to heal enough so that I can get back to it.