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

These work awesome!! Have one in my wallet.

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!

Great product. Came quickly and was at the bottom of the box with another order. These things are so slim you really have to be careful that they don't get lost in the shuffle if they are in with another order. All three of the lenses came without any deformities or real aberrations. A Fresnel lens is a flat lens made of a number of concentric rings with each ring slightly angled to focus the light to a certain spot. This allows for good magnification without the bulk of a traditional magnifying lens (if you already knew all this I apologize, but I certainly didn't). Anyway, these lenses are just as advertised, very slim, very strong, and very flexible. The flexibility is great so that you don't have to worry about cracking them very easily. The magnification does seem to be right around 4x like they say. The protective sleeves come with some nice inspirational quotes from some great minds and you can see the magnification in my photo. Sorry it's a little blurry in the background but the depth of field on my phone at that distance isn't so great. Anyway you get the idea of the magnification. You can also see the distortion at full magnification as the letters bend a bit on the outsides. So, I bought these as just an extra backup way to make fire in my emergency/bug out bags. It's nice to have something that doesn't rely on any fuel or that needs to stay dry (lighters and matches). I haven't tried to start a fire with them yet as it has been overcast since I got them (of course, right?!) but once the sun comes out I'll give it a shot and update. I'm pretty confident that on a full sun day you could start some tinder smoking pretty quickly. I'll find out. I try to make my reviews engaging and useful so if you though this review was helpful please click on the helpful button. Thanks!

Fits in your wallet so its easy to Cary and you can forget that its there. Works as it should as long as you have access to direct sunlight. Takes practice to be able to use reliability.

I keep one in my wallet. I tried to run several "tap" credit cards with this next to the card. The card reader wouldnt read my credit in any of tbe situations. Reccommend

Was fishing the other day through a river and wanted to start a small fire. Forgot my lighter. Then I remembered I had one in wallet. Couldn't belive how easy it was to start a fire and honestly thats really good survival tool.

I compared these to the 3X ones I have and they are same power. So, you're paying for 3 of these when you can get a pack of 12 for the same price but without the tacticool "survival" printed vinyl sleeves.

I put one of these in my wallet because I don't want to carry my reading glasses when I got out to eat. Very handy to read menus in the dark restaurants with small font.

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.

Great value

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!

This is one of the better ones ,,,,The lines are finer and the Plastic is much clearer than Some ofthe other CARD magnifiers