
I attach them to my regular sunglasses while driving. This makes for a very effective combination of oversized, opaque sunglasses on very bright days. Easy to flip or take off when not needed. It feels more like a quality product than cheap plastic. Addendum: I agree with the comments that they are great. They are heavy compared to some of the flimsy plastic clips I also have. But not so hard that it was a problem for me. Since I use them in my moving car, I don't worry about the looks. Being large, they cover the glasses completely and are close to my face, preventing light from reaching the top and sides. Thus, additional eye protection is provided. If you are looking for a clip that fits your prescription glasses exactly for cosmetic reasons. They can be too big. I think I might buy a second pair to keep in my second car. For $15, that's a good price.

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