Review on CIPA 33000 12 Day Night by Rich Schobinger

Mirror size, weight and simplicity are good. I bought this to replace a heavy photosensitive/auto tinting mirror in my minivan that kept falling off when the car was in the sun. The surface of the metal button attached to the windshield is not smooth or flat, but has burrs due to its shape; This error creates a gap that prevents the adhesive from properly bonding the button to the windshield. I suppose it could have been cut and sanded but that was too much work so I reused the original knob that came with the machine.