Purchased from the official store around July of this year. I've used it about 5 times, but I'm selling it because I don't use it anymore. There are no noticeable stains, but please understand that this is a used item. I apologize if I have overlooked any minor stains. The only document included is the instruction manual. I will also include the original storage bag for shipping. I will compress it for shipping, so thank you for your understanding. Thank you for looking.