Best Glide ASE 3-Pack Credit Card Size Pocket Fresnel Lens - 4X Magnification - Emergency Fire Starter - Compact

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

I wanted a magnifying 'thing' to help with reading small-print etc when travelling. Having seen the reviews of these cards I thought i'd give them a try. What a disappointment. Very short range of focus with huge distortion of the image. Perhaps my expectations were to high, but these have now been returned as not fit for purpose.

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.

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!

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!

These are just nice to have around. They do a great job as magnifiers, easy to keep in a wallet/purse to have at all times. Cheap enough where you can buy lots, and have them all over the house/shop/garage, wherever you sometimes need one, always at hand.