Auto Drive 2-Pack Quarter-Round Adjustable Blind Spot Mirrors are a must-have accessory for all drivers concerned about safety while they travel and fit most vehicle types. Designed to help you change lanes with more confidence, these specialized mirrors are a convenient and reliable way to increase your view on both busy highways and quiet side streets. By eliminating dangerous blind spots, they provide you and your passengers with a safer ride. Engineered for easy rotation, their viewing angle can be adjusted as needed to create a greater field of vision. They can also reduce strain on your neck when turning to check traffic alongside and behind you. A self-adhesive mount makes them simple to install on your existing side mirrors. Investing in the Auto Drive 2-Pack Quarter-Round Adjustable Blind Spot Mirror is a small but effective step toward ensuring your safety and the safety of others on the road..11 lb.