Good cup holder for its price. Installed in a Renault Clio IV in the back seat. My complaints are the size of the holders (a bit small) and the quality of the plastic. Installation is a bit tricky until you figure it out.

It has some difficulty in assembly and fastening. Its base is indeed rotatable but for fitting purposes in your car. Do not be misled into thinking that your cups will rotate. Be careful, if the base does not fit properly and you try to pull out a thermos that is stuck in the base, it is very likely that the base will come off along with the thermos. Personally, it didn't suit my car very well but for some other types of cars it might be ideal. Overall, an average product.

Good product but difficult to install. The oil came out until I found the trick. After that, it never unhooked and does what it promises. It requires a little attention when placing coffee cups because the plastic inserts are narrow and it needs a little trick there too. It solved my problem and I believe it really transforms regular cup holders into "adaptive cup holders." I highly recommend it.

It was installed perfectly in a Renault Clio IV. I'm saved! It does its job well and finally fits my thermos.

It was easily installed in an Opel Vectra C. It adjusts to cup holders of various diameters as it can be adjusted to fit perfectly. It has internal slots that hold the cups, which can be removed to accommodate even larger ones. I have removed one so that one compartment can fit a wider thermos and the other can fit a thinner one.

Very good! It fits well in a Toyota ProAce van, which only has two cup holders. The base can be moved right-left-center for better fit. The base may not seem suitable for large car cup holders, but it rotates and opens to tighten inside the car cup holder. The base comfortably and securely holds classic paper coffee cups, small water bottles, and espresso cups. It can also accommodate slightly larger cups if the second inner base is removed.

The -1 star is only because the base needs to be tightened a bit again after a day or two, as it loosens. It's not something that would make you avoid it, but maybe it could have been designed not to do that since it's meant to do only one job. Finally, it doesn't fit at all in the new '21 Toyota Yaris, so avoid it.