So far, so good. These are quite heavy, probably should have ordered the ones with integrated wheels. Haven't tested with lots of wind but our 24" signs should be fine.
We have always have sign stands with the flat bottom and they either cracked or fell over. This base holds the sign perfectly without falling over in the wind.
These were quite heavy but that was in the description so not a problem plus I can see them lasting a long time and not having to worry about them just rolling away in the wind. Installation was pretty easy as well.
Looking Good - Heavy duty parking lot sign bases
perfect!