Thought I would ask the gurus here, what are these? I was cleaning the other day and found a dozen of these from the previous owner. I know that they look like the end of a broom handle that screws into the head, but thought maybe they had something to do with the wash? I can't imagine why you would need a dozen on hand. Notice they have no through hole like perhaps some sort of foam brush head. Anyone? I hate to throw something out if I don't know what its for. 
Thanks!
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Thanks!
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