The ones I got off ebay look okay. These are not left/right specific, I believe the official HD ones are? I have a large Harley dealer right up the road from me, they had these mirrors in stock but they had Harley Davidson written on the stem $20 each. The ones I got are a stem, the mirror head slides on and is secured by a set screw so you can rotate the stem in the mounting hole, the mirror can spin around the stem and slide up or down, then the mirror itself can be pivoted. Even so I had to fiddle to get a decent view without the mirror ending up behind the window frame or too low to interfere with the door opening. I'll wax the daylights out of them in the hope of keeping them pretty for a while. Drove the car last night and they function well, good view, easy to reach over and tweak either one as you drive. I'm okay with them. They look like they belong I think although the wing mounted ones look cooler (IMHO), fender mounts have some disadvantages: trying to work around them when tinkering in engine bay and questionable functionality as useful mirrors, the need to drill holes. These are easily ditched if needed. Not sure the side curtains will sneak between them and the window frame but if not, the few times I have the top on, I can just push them out of the way.
PS I got the 4" ones.