Gravipod Half-Round Umbrella Base Weight Bag - Up To 50 lbs.

I have a half umbrella and my balcony is on a side of my apartment building that easily captures winds and my umbrella (even in its rod iron holder with that weight) to be lifted and dive off the balcony (would end up having off the balcony). The Gravipod weight is very well manufactured- high quality product and was easy to fill and once filled- the closure was super tight and effective at keeping sand in. And now- not one instance of "lift off" since I placed it around the pole on top of the rod iron base of my umbrella- it's perfect.

Holds umbrella very well. I’m very happy with this product.

It does the job for sure, I live in a very windy area and it has never once let my umbrella topple over. My only issue is the pictures they show are of the product fully filled with sand and that is very deceiving. You must fill the bag yourself with sand and let me tell you... it is no easy or clean process especially by yourself. It’s even harder if you live in an apartment and do this on your balcony. But once your finished, it does the job 100%

Whoever designed this obviously didn't have to fill one themselves. They could have just made a velcro flap that opened on 3 sides... but no, just a single velcro slit. It's terrible. Really bad. But, once you actually get the damn thing filled, you don't have to worry about it again, and it's nice and sturdy.

This is a BAG. !! no way it would hold an umbrella of ANY SIZE !! don't waste your time...or money. I honestly can't understand why they advertised this product as an umbrella stand. May make a good weight for a beach tent or SOMETHING along those lines...but DEFINITELY not somethng that requires vertical stabilization !!