I have a pair, L & R, branded as Harley Davidson. These came on my BN7 mounted in the forward side curtain holes, with a threaded shaft emerging at the bottom of the hole and held by a chrome lock nut. Unfortunately, I cracked the paint around both holes while trying to snug these down and went to another system. Anyone using this type of mirror should come up with a way to avoid what happened to me. Because of a couple of sports misadentures, first golf, then tennis, etc., I have only one eye, the left one. I find an autobahn mirror that mounts with a suction cup on the lower left corner of the windshield plus an inexpensive additional mirror I mount to the right of the dash-mounted mirror work well for me. We Floridians rarely install our hoods (tops), so I don't know how adequate my system will be with the hood mounted. I have an autobahn mirror on my Porsche, as well, but there I only use it to see if anyone is alongside me when I change lanes. It serves pretty well as a general rearview mirror on the Healey. The Harley mirrors are available.