You can improve by giving more information about this product, specifically about the diameter stem of the umbrella.  Meaning let the customers know that if your placing this particular into a patio table where the hole is already there, its won't fit.  The stem is too big and won't fit into the hole of the table.  The same goes when looking for a stand alone base for this umbrella, it won't fir an average size umbrella base.  I know first hand, because I ordered two of them.