WIDE ANGLE - The Blind Spot Mirrors are a "must have" for drivers, taxicabs, carpoolers, teenagers or any car owner. They help you avoid the dreaded and tricky blind spots. The passing lanes, changing lanes, merging onto freeways or even backing and parking the mirrors will give you the confidence and ability to do so easily.STICK-ON MOUNTING - They easily mount to the original factory mirror with the convenient stick on mounting. Although they can be placed anywhere you prefer, they are typically placed on the bottom outside corner of the original mirror.SLEEKER LOOK - The border is extremely thin and in a classic aluminum color thereby giving it a sleeker look. Unlike the larger mirrors with the bulky black frame, the Blind spot Car Mirrors won't take up a lot of space on the original mirror making it a most handy car necessity.INCREASE SAFETY - These mirrors clearly show you cars and trucks in the lane besides you and help in passing or changing lanes, merging lanes and parking. They should be standard equipment on every car on the road because they are greatly reducing the accident rate. Increase your safety by eliminating blind spots for safer driving, passing and changing lanes. They are rust resistant and easily stick on car side mirrors with the double adhesive tape base.