Very poor quality buy another brand.
I bought these from my reading glasses and was happy with them until the silicon pad started separating from its adhesive backing. When this happened I had to replace it with another pad. They work for less than two weeks then fall off. These are on my reading glasses which I use on occasion and not something that is worn constantly. Very poor quality. There are better products available on Amazon that work correctly and last for a much longer time.
Rating: 1 stars