Sadly, this umbrella is one of the most disappointing items I have ever ordered.  Anywhere, anytime.  Ordered the first week of May, I have never been able to use it with success. I am  unable to find an appropriate base.  I behave  shopped other stores And very quickly became frustrated.  It fits no base I have found. And I purchased a couple of them. It has  already jammed when trying to open and close; the fabric comes loose from the umbrella canvas always; and constantly spins when I have attempted to use it.  
Return it?   I am a 74 year old widow and don’t forget COVID.  No way can I find a box that fits and haul it to the USPS.