K10YG There are two sizes, and this is the larger one. Purchased at the end of last year. The warranty card is not available because I accidentally threw away the paper bag it was in when I bought it... It is definitely authentic, so I hope you can purchase with confidence. Therefore, it will be sold as the item itself only. I used it three times when going out. The back has a mirror finish, so there are fine scratches. I don't think there are any other noticeable ones, but please understand that this is a used item. No returns accepted.