I have had 2 10X10 units from another manufacturer and they still work well. This one 12x12 is the biggest piece of junk I have ever seen, the cover had 2 sewn on Velco retaining tabs which were lose in the box, when we tied off the corner posts one of the tie down hoops popped off. Do not buy this item, not from Wayfair. I would expect a refund or at least another cover because one will not make it past one windstorm above a cool summer breeze.