This is a genuine Mercedes-Benz jackknife key, purchased new from a Yanase dealer approximately 6 years ago. The genuine part number is A1407601406. I bought this as a spare and stored it in a dark place with the battery removed after registering it. While there are listings for used ones, I believe there are hardly any unused ones. Since it's unused, there are, of course, no fingerprints, and the rough texture of the new material remains. For those who currently use a jackknife key and need it for key refreshing, such as replacing the surrounding case. Compatible with W124, W463, W210, etc. I disposed of the car a while ago, but I forgot about this key and am now listing it. Although it's almost unused, please understand that it has been in someone's possession before bidding. I don't intend to sell it at any cost, so I will remove the listing if there are no bids. No returns or cancellations accepted. I am also listing this on other sites. You can purchase it immediately, but in the unlikely event that it sells on another site first, I will prioritize that sale, so please understand.