Best Glide ASE Credit Card Size Fresnel Lens Fire Starter and Magnifier Lenses (3 Pack - Green)

Works fine. Very thin. Good for reading fine print or starting fires.

These work. I was helping my niece and nephew learn how to start emergency fire and the niece burned her hand under magnification so the science is in. I keep one in my billfold along with duct-tapem fish hooks, a matchbook , water filter and emergency tent.

Small, portable, effective.

This 3-pack of Fresnel lenses are a good deal for the money and a solid product for survivalist, campers, hikers, or anybody needing a last resort method of lighting a fire on a sunny day. These are thin, flexible and about the size of a credit card and will slip into a wallet or go bag without weight or taking up space. A must have in my opinion. Fresnel lenses are a magnifying lens specialized designed to ignite dry tinder and start a fire, but you must have sunlight like any magnifying glass. An important aspect of these Fresnel lenses is that they are 4x magnification compared to many that are only 2x. The 4x will burn quicker and help you get the fire started. As in any fire starting venture, you want the driest tinder possible, and build a small tinder pile (or make a tinder bundle) and focus the light beam to start the burning process. Make sure you have dry twigs and larger woods on hand to build your fire. A handy thing to carry in your go-bag is a couple dry tea bags that can help assure you of something that will ignite in a less than perfect environment. Tinder bundles are compressed dry leaves and small twigs. You don't want them to be to loose, but not to tight either, because you want air to circulate through the bundle to aid the fire. In a survival situation, if you have access to dry tinder materials, you want to make several tinder bundles while the getting is good in case it rains. If you have some plastic, wrap them up to keep them dry, or put them in an article of clothing and stash them so they won't get wet. You can see many demonstrations on You Tube. Highly recommended!

I forgot I bought these and just found them. They fit right in your wallet or purse and you always have an emergency reader- that can also start an emergency fire. Nifty

I am what you would call an "armchair" survivalist. Testing out survival gear is one of my hobbies. I am not going to lie, I thought these were a gimmick - they definitely are not! These barely weigh a few grams but they do so much for so little mass. In full sunlight I lit a cigarette in about 20-30 seconds and I am confident I could get a camp fire going with relative ease. As a bonus, on the back of the sleeve I drew a diagram of a bowline knot (the so-called king of knots). This is probably my favorite piece of survival gear overall. Very impressed!

First of all, the product is okay as a Magnifying lens and the cost is reasonable. What I don't like about the product, is that it is often very hard to light a fire with a magnifying lens. I have tested this myself and unless the sun is at a good angle, you are not going to get a fire from this device. You may brown the paper (or whatever you are trying to light), but that might be all you get. Besides, what if you need a fire when the sun goes down. This product is not going to help you in that situation. I would recommend the follow items first before you include this item in your survival pack: Good Magnesium Fire Steel, Disposable Lighter, Matches. Don't forget to pack some cotton balls. Cotton balls go up incredible fast and they are fairly cheap and light weight. When you add some petroleum jelly to the cotton balls, you get a hot start to your fire and the fire will last a little longer. I will carry this item in my survival pack because it is so light, but I doubt I will be trying to start any fires with it.

Bought some as random "here have this" items at work, decent wallet magnifying glass, better at starting fires.

The credit size Fresnel lens arrived in good time and matched the sellers description. It is compact and extremely thin, making it easy to fit into a purse or wallet. The colour is a good choice making it easy to find when needed

Delivered quickly enough. These are very thin and I haven’t been successful in starting a fire yet. As to the quality I really don’t know but they were expensive enough so I’m hoping they will be a good addition to my hiking survival kit.

Gets the job done.

Not much to say other than it arrived very quickly. They are very small and compact and do not take much space. Great for emergencies!

Excellent