I used it a little and then stored it at home. As shown in the image, there is no metal fitting to attach to the key, so please use something else to substitute. There are no noticeable stains or scratches, but please understand that this is a used item before purchasing. Therefore, please refrain from purchasing if you are sensitive to this. Finally, I will decide on price reductions, so I will delete any comments asking for a price reduction without replying.