I have a pair of highly used m frame 2.0 black frame with grey lenses The iridium coating on the inside has start to come off. If i could rate them the frame and nose piece would be 7/10 and the lenses would be a 4/10 They still function and are broken in no way. Just lots of scratches. Nothing to obstruct vision too bad Looking for 30 usd via paypal. Ships same day.