This is a really nice umbrella at a great price.  But, there needs to be a way better base solution to this.  The unit will not stand alone with the included base, duh.  You either need to purchase patio pavers to secure it, or bolt it to your deck like we had to.  Unfortunately the slightest breeze will make this thing go nearly airborne and an unexpected gust BENT THE WELD holding the umbrella down.  Needs a much heavier base and it would  good to include long bolts and washers.  Also - I bought a 30lb base to go with this and it was completely inadequate to support it - tipped right over and bent the base itself.  So don't bother trying to buy a base on Wayfair for this umbrella: either use pavers, or expect to bolt it to your deck.