I purchased mine, belive they are called Multiflex, from Lewis Preston of Electrical Connection. Took a little getting used to them, however, love them now as they work great. You can reach lewis via his website www.electricalconnection.com or 800-215-6168.
Your right Starwing, once you get use to them their great !
I just needed a replacement left side, someone knock the bike over in a motel parking lot last week. I think they tried to climb on with the bike on center stand, maybe using the road pegs and tipped it over. Next time I'll try putting the cover on to discourage that idea.
multivex mirrors are the best accessory I could have added to my bike - almost 180 degree field of view now. I can literally see the front of a car in my peripheral vision and still see it's back half in the mirror.