These are black titanium frame glasses and case by Kazuo Kawasaki. I believe the description when I purchased them stated they were titanium frames. The kind that are light and durable. I apologize if my memory is incorrect. I bought them because they were incredibly cool and I fell in love with them, but I've only used them once. There are no noticeable stains, but I'm listing them as "slightly scratched or dirty" as I may have overlooked something. While it's subjective, I think they are in good condition. If you replace the lenses, anyone can use them, so please consider them. - Brand: kawasaki kazuo - Model: Unknown - Frame Color: Black - Design: Metal frame Thank you for looking.