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Title: Seemed like a good idea..
Review: Cheap, poorly made junk that don't do as promoted. The magnifiers in the 2.5X magnification are the thickness of a quarter. They are not pliable enough to properly adhere to a semi-curved surface like sunglass lenses. They are held in place with water adhesion, which fails to work and is difficult to dry around or clean without displacing. I suppose the concept might work with the 1.0X mag which would be thinner, lighter and more flexible? The stick on magnifiers are too large for many lenses and will interfere with 2/3 or more of your standard field of view. Only attempt with larger round-ish lenses in 1.0 X magnification and don't be too surprised when they simply fall off.
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