CIPA 11960 Universal Towing Mirror
Not bad for the price. I used these mirrors for a few months & they did serve thier purpose. My biggest complaint would be the vibration while driving making the viewing area hard to see. A bit scary while changing lanes on the interstate pulling a 30' travel trailer. I ended up purchasing the slide on CIPA mirrors that were made specifically for my vehicle wich are much better.

Work great
Mirrors work and great and are the only ones I could find to fit my Armada.

Finally a mirror that worked
These are great mirrors. I tow a 33 ft trailer with an Expedition. I hadn't needed mirrors with our old trailer, but knew I would for the new one. I also didn't think they would make much of a difference, but the law is the law. I tried a different universal mirror that flew off on the freeway. I looked for the Cipa slide over mirrors, but they aren't made for the Expedition, so I tried these. They really make a difference in being able to see around the trailer and they stayed on tight. I had trouble adjusting them correctly and ended up puting a "shim" under one of the feet. I used a piece of rubber shelf liner. That worked perfectly and I am very happy with the product.

CIPA UTM
This mirror works as advertised, clips on easily and stay in place if you tighten according to the instructions. Since it's an add-on mirror it does have a bit of vibration but nothing you can't life with. I also purchased the wideangle lens which are quite helpful.

Mirrors
The mirrors work well, inexpensive, and after you use them a few times are easy to adjust.