Husband has been using for a couple of weeks now. It seems to work well. The little adjustable plastic piece does get cold when wearing outside, but that is to be expected. He has little rubber pieces on the end of this glasses so that they stay on his head and the ends of this string do fit well over the rubber pieces. So far, so good.
Received the hooks in a very small plastic zip bag. Packaging was very poor. Item was as described, I think. The hooks are extremely small, my son is not sure if they will be effective. The quality does not seem up to par here
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