sturdy but will not stick to my boat surface.
347391
looks good, but will not suck stick to my aluminum boat surface. rest of boat is carpeted.  No screw holes in base, which I may add.
Mechanical phone  hold is good.  over all I like it.
I will try to mound a polished metal plate to my painted alum. boat surface to stick it too.  or next I will drill 3 screw holes in  base.
to carry a iPhone 5 worth $ 500+  in my fishing boat, I want it secure and right.  (this will hold my Android table for fish finder screen.)
package a proper surface mount plate with this and I would give it a 5.
2216321
Solid quality, though it didn't ultimately meet my needs. 4star rating is due to difficulty mounting it.
4909940
The posts get stuck in the plastic part in the base.  I have 6 of these on mt Tracker and 3 have failed.  My boat is a year and a half old.  I am trying to find just the plastic part, but no luck.  You have been warned.
4120702
These are sturdy ladder hooks but the wheels still move around even with the wing nuts fastened tightly and it scared us while trying to maneuver it on the roof.  We used gorilla tape to hold the wheels stationery.  My suggestion is that the wheels be soldered so they cannot move around.
3001209
Well made, sturdy. The only issue I had is that since my boat is a cat hull, the sides are pretty straight up, so I had to fashion a block of wood as a spacer so they would come in at more of an angle to the boat.
4594560
I didn't see anywhere during the search that this would not stick to a non-stop surface. Even though the non slip is old and not really there. Just wish I would have known in advance.
674905
Very well made from quality materials, but I had to build a stand to anchor it on. It kept tilting forward when pulling a long hose from the reel. After buying a 4X4 post, 2X4's and lag bolts, I still came out better than buying the one which was mounted on a cart for stability.
3549617
clips have to be bigger to work on pontoon boats. can not snap on to boat had to jury rig bigger clips
3463874
Had to pay $20 to return it.  The description didn't say that the product isn't designed for boats with a keel roller or keel support.
2018285
This is a very sturdy well built item.  However, I don't like it, not easy to work with and really is not what I thought it would be.  Difficult to pull around to different areas on my deck, so I have to carry everything to it.  Does not hold enough soil and no protection from rain, even under my overhang.
2282088
Had fun finding a surface to attach it too, but once it sticks there, it stays there. Had it for a while now, and it still stays. Only problem I've had with it is that the tightener to keep it in place there doesn't keep a good hold sometimes.
4388193
Great to use on solid surfaces. It's pretty sturdy and pulls easy on level hard ground. That being said it is not good for the beach sand. The wheels are not big enough to rotate in the sand. It sunk in and I was basically dragging it .
252485
This floating pier can support my four 5" res.

One major problem though, suction cups doesn't hold for long! The whole pier will self detach and becomes free floating within a day. I'm still thinking of ways to make it hold without using any adhesive, if not, it'll be 20bucks gone.

Other minor gripes. Only one ramp up the dock. Ramp doesn't seem stable. When turtles try to climb up the corners, the dock will be flooded. Overall still a poor product but with huge potential.
2652871
These come 2 to a package. My flat bottom is 15 feet long.  If I had a bigger boat ,they may not be strong enough. But so far they are fine for my boat. They are a strong plastic . Maybe a composite or something
303964
Looks great on the boat dash! The ad shows it flat but it is deep as much as 4". Getting ready to test it next week. Not an ez installation. One may want to mount it on a clip or something instead of drilling a large hole through your dash.
334173
Very sturdy - have used these on others' dive boats and despite years of sun exposure, they have held tanks firmly in 4' seas on a 29' boat.  The aluminum mounting rails were already installed on a new-to-me boat, so I thought I'd try them.  They are difficult to get into the rails, but should hold tanks securely.  I have not yet put them to the test, but with them holding tanks in the splash-well, there should be little pounding even in rough water or crossing boat wakes.
2830381
This is very sturdy and well built and comes with a nice little protective cap. I wanted something that would scrape my tank without me having to stick my hand in it. It is long enough, however, the blade is at an awkward angle so it doesn't let  you scrape all the way to the bottom. Sticking my hand in the tank with a standard razor blade is the only way I could get the glass clean. 3 stars for being a sturdy product and perhaps it would work for others with a larger tank, it just wasn't a good fit for me.