My rating of this product one star
Delivered end of April.
July 10.
Product used at most 10 times.  So umbrella opened up maybe 10 times. 
July 10 umbrella will not go up.  
So now I have to buy another umbrella.
Lot of many lost.
Hope your purchase of this umbrella gets more use of the product than I was able to get.
So my rating is one star