so many years optique So Many Years PC Glasses [Materials] Frame: Plastic, Alloy Temple: Alloy UV Transmission: Less than 1.0% Visible Light Transmission: 90% Blue Light Cut Rate: 20% [Color] Silver x Black I purchased these at a now-closed general goods store. These are non-prescription blue light cut glasses. A case was not included, so I stored them in my own glasses case. However, I haven't had a chance to use them and they've been sitting unused, so I'm selling them to declutter (*˙ᵕ˙*) Please consider this item only if you understand that it has been stored by a private individual. I cannot accept significant price negotiations.