Fresnel Lens (wallet type) by M. Redfish
I cant express enough how you should buy some of these and keep them in your kits and wallet/purse.
Very inexpensive, I think I bought 10 for $5 and gave some away
Super flat and weigh nothing
Unlike glass, made of flexible, unbreakable plastic
Starts fire with the sun… you know, fire
Use in first aid to see splinters etc.
Great for reading if you forget, lose, or break your eye glasses. If you cant see well, the lens could save your life for reading directions, dosage, ingredients, instructions, maps, notes left by others, how-to books, electrical diagrams, tying fish hooks, threading a repair needle…
Use to entertain and educate kids or self looking at bugs etc
I even cut out the center area about the size of a quarter and it worked to start a fire.
Super cheap and should come with a plastic sleeve to keep them in
Unlike glass, made of unbreakable flexible plastic
