For most cars and truck drivers, it is not an essential vehicle accessory if you only know how to properly adjust your side view mirrors. However, numerous drivers nowadays buy this piece of aftermarket vehicle accessory to solve their problems with the blind spot. In order to use this accessory properly, it should be fixed on your right or left side mirror so you can definitely see the blind spots.
It is important that your side view mirrors are positioned properly. By proper, it means that you should not be seeing the side of your car. You can then adjust it to see what the side mirrors miss. Too many vehicles, the ideal installation location is on the upper corner of the mirror.
This is not applicable to all types of vehicles. It is important that you try to experiment with the position and placement of this accessory. It is important to note that the size of the mirror restricts the visibility of the reflection available to the driver.