Have bifocals at a very low price
I have used this type of lens for 15+ years and have used these specific ones a number of times.  They work as advertised.  They will stay on a lens for years and still come off after a short soaking so they can be placed on another lens.  They are easily cut to size for use in smaller lens.  I've saved 100s of dollars by not paying for prescription sunglasses.  I have them on my polarized fishing glasses, amber driving glasses, and safety glasses in the garage.  I've used them on glasses I've worn in the surf at the beach, while swamping a canoe and while being in a wave pool without them coming off the lens.  For the life of me I can't understand why they aren't advertised on TV.
Rating: 5 stars