Thank you for looking. These are replacement lenses for BiSphaera, which I chose when I purchased custom frames. I use prescription lenses, so these are unused. These are Prizm Golf lenses and are recommended for playing golf. Here is a link that may be helpful: https://www.nikigolf.jp/contents/1605_contents/ If you are a BiSphaera user who plays golf, please consider these as replacement lenses. No claims, no returns, please.