Works well but...
As a piece of design it works well. However the nut that is welded to the upright that is used to clamp parasols is fine but the hole the other side of the nut is not quite big enough for the knurled clamp bolt to go through..... I had to work it with a bolt of the same thread to open it up and make it usable. A little disappointing, just as well I have some DIY skills.
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