For Norio Murai only. Please do not purchase if you are not him. These were made at a local glasses store sometime ago, and I think the prescription was 2.0. I apologize if I'm mistaken. I haven't used them much. I think the frame is more valuable than the lenses. It's a stylish and lightweight frame. The entire glasses weigh only 31g. These are not cheap glasses like the ones sold at the 100-yen stores. Please rest assured. The glasses size is: Lens width: 54mm Bridge width: 15mm Temple width: 142mm