makes the umbrella very sturdy. well
931182
This works perfectly on my sunshelf.  makes the umbrella very sturdy.  well made
4929713
This umbrella is very sturdy and can withstand a lot of rough tumbling. It is made very sturdy and flips up, on purpose!, in high winds to prevent breakage. Ive had many umbrellas break but I have a feeling this one will hold up.
2858773
Compact, sturdy, and very well constructed umbrella.  The automatic open and close function is a plus.
393567
Clamp and attachment rod extremely well made and sturdy. Umbrella itself was smaller and flimsier than expected. The umbrella will be the part that gets bent up and broken first (like any umbrella, I guess.)
1660908
Looks great.  Sturdy for an umbrella, while adding another small table.
586948
A MUST buy if you get the cantilever umbrella.  I got two and very happy I did.  One just barely makes it (unless you live in a wind-free zone).  The two I got holds my umbrella solid...windy or not.  I don't know how this umbrella would ever stand on its own without a weighted down base.
4806886
looks and feels very sturdy. it has a huge coil spring that shoots the umbrella open but it is very easy to retract.
432519
I definitely agree with the other reviewer here that it takes a very long time to get the sand into the opening (same size as a gallon milk jug opening).  Once the sand is in there, though, the cap locks on and you never have to refill it.  I also, based on R. Sells review, drilled a hole in my umbrella pole that matches the screw in the umbrella base.  The pole is more secured in the base with the screw passing into the umbrella pole.  The plastic housing seems pretty tough and should hold up several seasons.
2397465
great sturdy umbrella that pops right open and closed.
1387878
Sturdy and so much easier to keep your umbrella secure! Fits nicely in the side of a backpack for easy carry.
608232
Heavy duty, very sturdy construction! Very well designed. This beach umbrella setups easily and quickly. The difference between the beachBUB All-In-One and the normal quality beach umbrella is remarkable. The sandbag stand concept is dramatically superior to digging a hole in the sand in which to bury the umbrella pole. It is expensive but is also a quantum improvement in quality.
3286492
Strong, light weight, good materials, very good functionality.

The button on the handle projects the umbrella up and open. I feel very confident that the umbrella will hold strong in any weather. I have used it --extensively-- over the past week of seemingly constant rain.

When you step in doors, you simply press the same button again and the umbrella folds up. The unique thing about this umbrella is that when you press the button to fold up the fabric shield, it becomes very easy to then retract the pole. While you have to exert pressure on most umbrella poles to get over the spring action, this has a function which somehow gets over this problem, making it much easier to retract.

Once you've retracted, press the button again, and the umbrella pops open like usual.
1756507
Okay, I understand that the vents in the umbrella are to help keep it from inverting in a windstorm.  But in anything less than gale force winds, all they do is allow the wind to blow the rain into the umbrella.
2465408
Well made umbrella. Smooth cranking and tilting mechanisms.
1139417
It is a great but tricky umbrella. Perhaps it is the user.  My chair has a round frame which in wind can be a problem. I do like it and recommend it.
3979271
Very sturdy base; made sure I put it where I wanted it the first time, to prevent having to move it around!  The long-length support handles my umbrella well, with no 'slouching'.
4022339
Push the button and it extends and expands. Push the button again and the umbrella will collapse (you will have push the canopy and handle back to its half length / stored state)  Works great, feels sturdy.