Review on 🚚 Enhance Safety with 4 Pack 3 Inch Blind Spot Mirrors for Trucks, SUV's, Trailers, and Larger Vehicles – Premium Rust Resistant Aluminum & Real Glass Convex Mirrors – Bundle of 4 Pieces! by Max Rosengren

These 3 inch convex mirrors are reasonably priced and the mirrors appear to be well made (e.g. aluminum base, not plastic). I find that 3" mirrors give a better view of the tracks on either side than the more typical 2" convex mirrors. I used them to replace our 2" mirrors, which I didn't like because of their relatively smaller size and streetscape, and because they were adjustable (vibration will throw them out of alignment). 3" mirrors in 4 sets are not adjustable, much better.