Incase you were looking for mirrors for your bike and you saw those $5-$10 round mirrors that clip into the ends of your handle bars that are sold everywhere out of china, I got them for my sinch.2 because they fold up. At best it is functional. The build was OK and they fit in using a bolt that expands a spacer on the inside to secure itself to your bike. However the plastic convex mirror is just usable and the inner portion has the needed curve but then it flattens out on the edge causing the mirror to distort heavily. It will work for now but may want to spend a little more money if you want an even finish.