I ordered three of these. All three were missing essential parts. The first was missing both washers. The second was missing a small washer and the third was missing parts that go inside the tube to help keep the umbrella stable. My husband had extra washers and parts so he’s making it work but I’m disappointed that all three of these had issues. I’m not even sure that using washers where needed and getting everything as tight as possible will be enough to keep the umbrellas stable. The tube just doesn’t tighten as well as it should even with all the parts.