These glasses are for use when viewing LED displays on PCs, smartphones, TVs, games, etc. I received this product when I bought a PC, but I haven't used it and have stored it at home, so I'm listing it as "like new." Blue Light Cut Sunglasses Glasses for PC Frame color: Blue & Black Blue light cut: Approximately 43.2% (as stated on the back of the box) Includes a black case & lens cloth. As it has been stored at home for a long time, there are some creases and traces of peeled stickers on the outer box and lens cloth, so please understand. Also, when shipping, I may remove the product from the box and fold it to save on shipping costs, so please be aware of this as well. #PermanentStandard