This could have been a great umbrella if the base was designed differently.  As it is, it barely stands when the umbrella is down.  Once it is up, the whole thing falls.  No breeze needed.  Not a great purchase, although if you can stabilize it, it looks very good.  So we found a solution in the form of two 20-25 lb (each) stones that we put on top of the back of the base.  Now it is stable.  Otherwise, do not buy - it is unsafe, especially for kids.