They work fine. But note that there is protective film on _both_ sides of the lens. If you don't remove it, your vision will be blurry.It did take me a minute to clip them onto my glasses, but they stayed put very well, and I was flipping them up and down a lot.

Warning, it is delicate. Good thing it cones with a case. I advise to store when not in use . My son (under 10years old) use his on the daily basis.

Much more comfortable to wear this clip on your glasses than to wear the full sun glasses that fit over your glasses. That's my review.

The pinch area is tiny and very difficult the get full open. The first picture show the very small pinch area to open the clamp. One of the rubber clamp covers fell off and scratched the lens on that side.The second picture shows another product with an excellent pinch area that allows the clamp to fully open. This product is useless and hard to use.

These glasses fit well and are very handy to flip up when entering a store or going into shade. However, I felt a bit "dorky/nerdy" walking around with them flipped up. I have since bought oversized regular sunglasses that fit over my prescription glasses and just wear them with a lanyard so they are easy to keep at hand.

just what i was looking for, attaches easily, low cost, fit the size of the glasses well,haven't tried in bright sun yet, but i may end up buying another pair

This was a replacement for an older squeegee. The new design and longer wipe length cut down the time for drying our glass shower stalls. Our only problem is with the handle, which comes apart occasionally during long reaches.

It clips, it flips, it's a little bigger than my prescription glasses but works fine with them. My glasses (not this yodo) came with a magnetic shades, but when you take the shades off (like indoors) I never know where to put them (and land up bending them in my pocket). With this flip up clip on the other hand it stays on the glasses and flips up out of the way

Terrible, as other reviews mentioned: the central mechanism is plastic and does not "snap” into place. Also the thing the presses the clips open is tiny and you can’t grab it with your thumb without using both hands and touching the lenses. I wish I could return.

I have never owned a pari of shades with this much real polarization. These things are excellent for driving, on the water, flying.awesome. I did not expect that for the price- Really!