UPDATE:.I liked this so much I bought another set for our Ford Escape, to assist the Blind Spot Monitoring System! Now, I can easily see the curb as well as have an idea of what's beside me..ORIGINAL REVIEW:.I bought these for my daughter's new Kia Forte, which doesn't have a blind spot monitoring system.She liked the blind spot mirrors I had fitted to her old passed-down Subaru Outback. Those were adjustable but had a large, distracting outer rim. Always tricky to adjust the passenger side on her own too, which was often pointing in the wrong direction!I liked the look of these frameless, fixed mirrors..It looks like many buyers got something other than these. I got what was described on the product page. Two fixed mirrors. No rusting possible. No adjustable mount. Completely frameless.As I expected, these are not glass at all, but injection-molded ABS plastic with a vapor-deposited, very shiny, chrome surface..The convex mirrored surface is actually very clear with minimal distortion, as can be seen from the lines in the photo's reflection. Rubbing the surface with my fingers does not scratch the surface, though any abrasive material like dirt would, if rubbed in..The 3M adhesive, thin large round foam pad on the back is in reality, only a ring of effective adhesive about 3/16" to 1/4" inch wide. The molding in the middle of the back face, is concave. Press on the foam and it sinks in, slowly coming back up. So, when applying to the flat side mirror, you can't get good pressure applied to the middle of the adhesive pad, only that outer ring of flat plastic. It will have weak adhesion there.Removing the red 3M-marked protective film, took a sharp edge/fingernail under the edge. It was clear that the pad is foam as you could start to tear it apart, if not careful to get under just the film. This is actually useful as you can expect the foam to split in half when removing the blind spot mirror, leaving good access to the remaining foam to remove it from the mirror, if ever needed..To test the blind spot mirror, I used a couple small balls of Loctite Funtack as a temporary adhesive around the edge to hold it in place while we assessed if the mirror was going to work OK. We decided to proceed..I cleaned the mirror surface with Isopropyl Alcohol, let it dry and then pressed the blind spot mirror in place, being careful to get it where I wanted before the adhesive took hold. I did this by tilting the mirror into place, having positioned the outer rim at the edge of the side mirror glass.It would have been even better to use a small suction cup to hold it, but I didn't have one. Probably a tab of sticky tape temporarily stuck to the chromed surface would have worked as well. Press it to the mirror for at least 20 seconds and done! We'll see if they stay on over the long term and I'll update the review..As many reviewers have commented, the view is very wide and so the image in the blind spot mirror is pretty small. Smaller than you see in most such products. This is by design because the mirror is fixed and it has to be able to reflect those blind spots without actually being able to aim at them. That said, this image is wider than it needs to be. You do get a good portion of the side of your own vehicle in the reflection!In my view, no pun intended, the blind spot mirror is an aid and does not negate the need to glance behind you when maneuvering. The small image does assist in warning you of something potentially in the adjacent lane. The passenger side view is a little more difficult to discern as it's further away from the driver.There is another unexpected benefit from that wide view though. You can actually see the lines on the ground, or the curb itself, to help position your vehicle correctly! I often select reverse to check with the camera that I'm in the center of a parking bay! Not with this!Not sure yet how annoying headlight reflections will be at night with these. I'll be back on that!.CONCLUSION:.At just over $6, you really can't complain about these GotoShop Puzzle Sl Lenze blindspot mirrors. Certainly not if you are looking for a sleek, factory fit-looking accessory and with a good mirror surface.Yes, the image is a little wider, and hence smaller than you really need, but it's going to cover the blind spots for sure and give you added visibility to the side of your car for parking. At least as long as you have good eyesight - but then should you really be driving if not?! ;-)