Blind spot mirrors are a very affordable, cost-efficient way to improve driver safety. ... Editor's Pick: Ampper 2-inch Round/Square Blind Spot Mirrors. Check Price.

High-Tech Rearview Mirror Curbs Blind Spots Nearly 300 people die ... With a standard rearview mirror, I can't see 32-inch cones that are more than 20 feet behind me because they're in a blind spot.