Cody Lundin and Scott Kozakiewicz (ASU, REC 340, Outdoor Survival) recommend a glass survival mirror. The Ritter PSP mirror is as good as a glass mirror. I have a Star Flash. Take the Star Flash and a glass signal mirror of the same size a shine them on the side of a building. You will see a BIG difference. Use the sighting hole on both of them. The Ritter mirror works like a glass mirror. The Star Flash has a big fire ball that is hard to see past. The glass mirror has a fireball that is easy to aim with.

I have a 14 your old son in the Boy Scouts. He has a glass signal mirror. He is the kind of boy that breaks and looses almost everything he gets his hands on. He still makes a big mess at the table when he eats. The glass mirror comes in a foam pouch. We duct tape the pouch. We also put a cord on the mirror so it can be carried around the neck. The glass mirror is tough and not prohibitively heavy. The mirror, with foam pouch and cord weighs a back breaking, excruciating; 2.3 ounces. Try it yourself, you will see.