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

I know it's a glass mirror because I broke it through no fault of the maker or manufacturer. I applied pressure to the surface of the mirror. While removing the ill-fitting small round convex mirror that was on my car, I pulled the car mirror out of its housing. So I figured it would make it easier to mount the adhesive mirror, but it takes so much effort to put the car mirror back into its housing that I pushed on that convex mirror and broke it. I immediately went back to Revain, bought it again and ordered another mirror which I really like. The tape on the back of the mirror should be replaced with good quality tape.