Blind Spot Mirror, Quadrangle Shaped HD Glass Convex Rear View Car, 2 Packs Angle Adjustable Stick-On Side Mirror for All Universal Vehicles Cars

Bought them for my 2012 Scion XB that I drive for Uber. They stick well and can be adjusted vertically up / down on a hinge which is sturdy and firm so it does not move on its own. Drive about 200 miles / day and get 3+ car washes / week. Can not only see the lane next to me, but also the next lane (2 lanes over), which comes in handy when someone is changing 2 lanes at once in my blind spot. Installation: Clean the mirror well, Press on the mirror with the adhesive backing, PUSH on the mirror for a minute (at least 30 seconds). This sets the "pressure sensitive adhesive" so it won't come off. Temperature, in Phoenix it's been over 100 f every day for months and is over 110 f for weeks now, no problem! After about 5 months, I Highly Recommend this!

It arrived with one mirror broken

These mirrors work exactly as described. The only reason i gave 4 stars instead of 5 is that they would be better if they were designed to be opposite shapes of one another. The mirror on the driver side fits perfectly with the curvature of the car mirror but on the passenger side it does not. If these two mirrors were opposite shapes of each other both would have fit perfectly. Other than that they work great and dramatically increase your field of vision.

This mirror is easy to install on the glasses of car. Has high quality. And even easy to remove. The mirror is clear enough to help you see the soundings when you are driving. Highly recommend it.

I like the idea of a wider (not round) mirror, but this product simply does not have enough curvature to capture the required wide angle view. The convex angle is almost flat, so it adds ZERO value. Waste of money, pure and simple.

I like the narrower shape of these mirrors. The fit my side mirrors well and don't block my view, but give a nice wide-angle view. I've never seen spot mirrors like these before, but have recommended them to everyone I know. They were easy to install, especially after I realized that the shape lends itself better on one side over the other. That may not matter to some, depending on the shape of your side mirrors, but it did in my case. I wish that had been stated on the packaging as I discovered it by happen chance. But, once I discovered that, it made more sense as to how they work. Now, I'm very pleased!

This product is awesome. It is easy to install. The mirror is very clear. This mirror makes driving easier and safer.

As noted by other reviewers these appear to have been designed by someone who was unfamiliar with how car mirrors work, or how trapezoids work for that mattrr. The shapes for right side and left side are identical, not reverses of each other. Ironically I believe the the proper design term for doing this is "mirrored." even a diamond shape would have solved this and allowed them to keep to one mold. Perhaps the designer has both mirrors on one side? It's distracting and hard to unsee. Mildly infuriating.