Great heavy duty umbrella base.
Be warned, it is huge and very heavy once filled!  You’ll need a lot of sand or water to fill up the base, so make sure you can get it into the correct position before filling it all the way up.  It also takes up a lot of floor space so plan for that.
Once it’s filled up it is heavy enough to keep even huge umbrellas in place.
Ours is filled with sand and has done a great job holding up a 12 ft umbrella in any conditions.
We love it.