Polarized Black Metal Clip On Flip Up Grey/Gray Sunglass Lenses, Rectangle, 52mm Wide X 35mm High, 117mm Wide with Bridge

The clip on sun glasses work well and also seem to be made well, and the polarized lenses give that added protection. They clip on easily without the need to remove your glasses (but this is not to say that everyone will be able to place them on blindly). When I flip the lenses up, they stay up whether walking normally or hard, the lenses stay up. Optically, they are clear and free of blurriness, waving, and scratches. I use a commercial lens cleaner to clean them and have found no damage done to the lenses from it. So, I do recommend them for purchase with one caveat; the descriptions include measurements, and those measurements are the size of the lenses. What you're going to want to do is make sure they fit the lenses on your glasses. This will ensure that the sun glasses cover the entire lenses of your glasses, giving you the most protection from the sun. I was unaware of this and mine are a little bit smaller then my glasses, but fit well enough to give me good coverage, though in the future I will check the sizes better the next time.

I will be returning this. I pre-measured my lenses and the lens of these clip-ons match, so that's not the problem. The problem is that they are not designed to clip below a normal thickness glasses frame, so you would need to order a larger depth to drop down low enough. Or if your lenses have an almost invisible, very thin frame, they might work better.

I would highly discourage anyone who values their ophthalmic lenses from purchasing this item.The padding ("proprietary coating") on the clips wore through after several months of intermittent use, revealing the metal clip inside and creating permanent, localized scratch marks on my glasses. I ended up replacing my lenses after the scratches became intolerable, costing me around $150.Note: I have polycarbonate lenses, but I would imagine the clip would also scratch CR-39 or mineral glass lenses.

I needed sunglasses for driving that would work with progressive lenses that darken with light. However they do not get darker in the car. These flip ups are easy to attach and work well for driving. The ordering worked well to determine which size. It would have been easier if the inches equivalent had been noted on the sizes which necessitated conversion as I did not have a millimeter ruler to measure my glasses.

Great clip-on for prescription glasses. Old ones too big, too dark. These just right on darkness, takes out glare but clearly defines colors still. At half of what you get in stores with poor fit, would recommend these for perfect use.

These are the perfect size and shape for my 6 year old granddaughter's prescription eyeglasses.They are easy for her to flip up when she is inside and down when she goes out.She is very happy with the clip on sunglasses!

These are perfect! I can wear my glasses and not worry about carrying around sunglasses. A definite life saver as far as I'm concerned. They clip on super easily with one hand and come off just as easily. I leave them in my car clipped to the sun visor so they're always to hand when I need them. I'm going to order at least one more pair so I can leave one in my purse and one in the other car.

This is one of the few places you can still get clip-on sunglasses. The downside is that without trying them on, they might not fit despite instructions for measuring the size before ordering. In my case, the thicker frames didn't allow the clip-on glasses to cover the entire prescription lenses. A different measurement instruction needs to be developed.