Just got these installed and have used them the past couple days. I like them a lot! When closed they look like regular bar-ends and when open they adjust well. They are a little narrow (in height) but they are pretty long so you get a good view. I think they are a great combination of looks and functionality. And not bad for about $25usd per pair.
http://www.topeak.com/2004/products/mirror_lead.html
