Thank you for viewing. This is a SHOETEN mount adapter. It comes with a storage bag. It's for Leica M lenses / Leica SL bodies. I used it with a sigma fp and Leica M mount lenses. I purchased it new from an authorized dealer. There was a scratch on the edge from the time of purchase, but it did not affect its use. I have been careful in using it, but please understand that it is a used item.