Driving with the doors off greatly improves your visibility on the trails and helps you look cool when driving around town. These mirrors keep you legal and safe by replacing the factory mirror that are mounted to the doors. Once you have the brackets on your Jeep you can mount the mirrors in a minute or two. They do not vibrate or move on the highway or on the trail. On the trail it is very easy to loosen them and fold them in. Visibility is great on both sides. They are a bit stiff, so adjusting them takes some effort, but once set they stay put.
I considered several cheaper options that require some fabrication or modification. I found they are not worth the trouble. These are well though out, they work, and they are affordable.