Diameter of umbrella pole is not standard size.   Pole does not fit in opening of generic, universal size opening of table. 
Attempted to return and I was 7 days past 30 day time frame.  I hadnt opened it in July as it rained nearly every day.  Once the rain stopped, I opened the box.  Too late.  
I was encouraged by Wayfair to either donate it or give it to someone. 
It remains  inside my sunporch unused except for the one day I tried it in a separate umbrella holder. Nope. Didnt work. 
Im surprised at Wayfair response as their customer service has always been excellent. 
Check your measurements.