What are convex mirrors and where did you get them?
Convex mirrors are the kind that are bowl-shaped with the bottom of the bowl standing out. Does that make sense? You see them in stores for security because they can reflect a wider section of the room with a smaller mirror. Also they are sometimes attached to the side-view mirrors on delivery trucks so the driver can see more beside and behind themselves. That's what these were designed for and I bought them at an Ace Hardware store, but you could probably get them at an auto/truck accessories place, too.