I purchased this rearview mirror for the purpose of being able to see people approach me from behind. The office is carpeted so you cannot hear people walk up. This mirror has a cutout in the back which allows it to perfectly fit any corner of your monitor with the included double sided tape. The range of area viewed is wonderful.The only con and reason for the 3-star rating is that the mirror is horribly scratched and battered like it had been used for years and cleaning it doesn't help. I was suprised because I purchased new and the product appears used. In conclusion, it is functional, but the images reflected are just not as crystal clear as you would expect mirror images to be. Thank you.Material doesn’t feel the strongest but it fulfills it’s purpose.Decent construction; handy device. Sticks with included velcro to corner of monitor without being over-engineered or visually obtrusive. Solidly made plastic case holds curved mirror in place effectively.My random color ended up being black, which is fine with me. Very content with product overall.Mirror was plastic and could not see clearly. Did not stick to computer as promised.This is like a kid's mirrored toy with just plastic reflection wrap on it. It's shiny but it doesn't do a good job at alerting you that someone is coming up behind you. It also isn't compatible with all monitors, and falls easily.Broke in three days . Very poor qualityThis came dirty used and gross. I immediately returned it.