The Safe-Zone Helmet-Mounted Mirror
It's made in the USA by a small company call Efficient Velo Tools (EVT). The company asks consumers to support independently owned local bike shops, so contact yours and ask for the Safe-Zone Mirror, from EVT. The suggested retail price is $40. If your local dealer is not friendly about ordering one, you can order direct from the company for $40 each, postage paid. They say "Satisfaction Guaranteed," and I'm pretty sure they mean it.