Review on CIPA 49402 4x5.5" Oblong Stick-On Convex HotSpot Mirror by Giovanni Bedjohn

I bought them for the cockpit mirrors and they do a good job. They have a fisheye effect but serve a purpose. I also tried on my car and they fit the 2016 Corolla mirrors BUT. . . They distort the view more than I would like. A car 10 feet behind me looks tiny and distant. It covers most of the factory mirror, so getting it back (unless you remove it) isn't easy. The double sided tape didn't work and half a day in the sun left the mirror on the floor. The price is $2.00. But for the automatic blind spot mirror, I take a 2 inch round so I can still see the factory mirror.