Used this with an adjustable base....
340955
I have an adjustable base (Legitt & Platt) that works GREAT with this bed.  (I did not need to use the slats or the brace support under the bed).  I did buy a metal strap/tie from Lowe's and used that to further reinforce the headboard to the other pieces.  It seems it would have been so much better quality if they just made the headboard like they made the footboard (all one piece).  The fabric is nice.  A good bed for the price.
4610518
I like how adjustable this is.  You can use what you want (of the various hooks and trays) and leave off what you don't want to use.  Very sturdy and goes together easily.
4900680
I bought two of these. One table - it works perfectly because the table opening is large enough to accommodate the wedge. It DEFINITELY prevents swaying and the combination of the wedge along with a good base goes a long way. Offering 4 Stars vs. 5 only because the base of this wedge could start off a little smaller so that it can fit smaller table openings. I couldn't use the 2nd one because my other table umbrella opening is smaller. I have the aluminum style tables vs the plexiglass pictured. Really is a good product/idea - I just wish the bottom of the cone was smaller to fit smaller openings.
2782585
I bought this to move a light bulb out in front of a shelf that was blocking the light. Since I wanted the bulb to remain at about the same height, I have the gooseneck positioned in kind of an S curve. Docking one star since I had to attach the gooseneck to the ceiling to keep the position I want (otherwise it falls down slightly).
1274645
After tryin out I decided not to use on our bed, I gave it 3 stars because others might find it useful. I got these adjustable legs to raise up our bed to help the airflow.  I store a lot under the bed, and the cats like to hide from the dog under the bed when he chases them.  I decided I didn't like the way they screwed into the wood and didn't work well with our bed frame.  We have a sleigh bed.  I didn't want ro screw only 4 into the legs of the wooden frame, and didn't want to give up our sleigh bed.  It's not a failure of their product as much as a failure on my part to research the Amazon page to figure out how it would work with my bed.  This product is best for those that just have a box spring and mattress.
217713
Note that the base where the mount holes are is plastic.
Not sure if/how it will affect my intended use.
4118543
(I bought this to use for making jewelry.)  This is a small-size "Helping Hands".  The magnifying glass is smaller than I'd like, but worse, by far, is the lightweight  base.  It absolutely WILL NOT stand up if you put anything in the clips.  Fortunately, hubby is a machinist and bolted it to a heavy block of Stainless Steel, 4" X 5" X 1/2" thick, glued small rubber "knobs" on the bottom for feet, and now I can actually use it.  If you or someone you know can modify the base so it will stay upright, it's okay.  Short of doing something like that, I don't see how this would be at all functional.
51630
I used this on a vintage hi hat stand to keep the bottom cymbal from moving around to much. It worked
4931540
For the money, this lamp is pretty good.  It's sturdy and the base is heavy.  However, the section that drops into the base is not adjustable.  Ideally I'd like the option of having this lamp go straight up and down but that first section is at a permanent angle that can't be adjusted.  You can't angle the lamp towards you, for example.  I'm going to keep it but will look for another option.
1981131
Nice and exactly what I needed. Easily adjustable and movable, this baby swivels around the base so you have a lot of options for angles.
889645
I am 62 year old woman and I put it together alone this afternoon in about 3 hours. I didn't make a great base, just raked some sand to make a reasonably level spot. I will be using it to store a bicycle or two.  It fit together perfectly.  Guess I was lucky I got my base was fairly flat.  I have to admit it was a bit intimidating when I unwrapped the box, but I followed the instructions.  Got it at a box store.
1522798
Got this to provide a bigger and more secure base pad and also add an additional 6 3/4" length to the tongue jack so I do not need to stack as many blocks of wood under the jack for support.  The 2" jack post fits perfectly within the foot pad tube and the indentations within the foot pad tube at approx. 2" for the top of the foot post provide the base for the jack post to rest against.  Unfortunately, the holes for the retaining pin were a bit below the holes on the jack post, so I could not use the retaining pin to provide an additional connection for the foot pad to the jack post. However, the weight of the jack and the design of the post will not let anything get loose when used.

As others write, I drilled a 3/16" hole in the base to allow any water that might get into the tube to drain. It seems odd that the manufacturer did not do this since they do have a hole in the foot pad outside of the tube (see picture)!  This issue and the fact that the retaining pin does not line up  makes it a 4 star instead of 5 star item.
1880504
I have a circuit board holder which originally went into a suction-mount desktop vice base with a round hole. The base lost its suction and I could either buy another one for $40 or buy these blocks to mount the circuit board holder in my Wilton vice on the workbench.
2737524
This base works well; there was no problem tightening the umbrella into the base.  But no matter how well you tighten it in, if you have the umbrella tilted and a gust of wind comes up it can still blow over.  I'm not sure any base will prevent that.  It's better if you keep the umbrella flat, rather than tilted.
4012035
Perfect and adjustable. The 3 ring was not as long as I had thought it would be but it still worked well
3325281
The only things not perfect I noticed was that the threads screwing into the base seemed to have to fine of a pitch but it was tight.
I used this for a bass drum mic and for a guitar cabinet mic. I think if you wanted this up at its max height it could get a bit tipsy bu then why not use a regular height tripod for that. I really like it.
4310806
Worked as purpose too,  could have had a little more heft to it. But worked