Don't buy these mirrors

[Paul1965]

http://www.ebay.com/itm/381152011826?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

This is what they look like after less than 2 months use. The left side snapped off at the neck breaking speed of 40MPH, the right side followed a few miles later crossing over some rough railroad tracks. It's too bad too, because even though there were some vibrations they really did improve the field of vision a good amount.