That "safety-pink" plastic-framed hand mirror may have been made of real glass - thus the high quality reflection.
I've purchased several of the plastic signal mirrors, but after seeing the high reflective quality of a good glass mirror I've switched to the small glass signal mirrors sold at countycom.com. It is heavier than its plastic counterpart, but it really reflects nicely.
Ditto!
The Ritter PSP mirror is good but most of the plastic mirrors do not work anywhere near as good as a glass mirror. You can't beat a real glass signal mirror with the bright spot, sighting system.
Just shine them on the side of your building at work and they speak for themselves. Plastic is just a blur and glass projects a bright spot.
The Boy Scout Store has them for about seven dollars.