This is origami I received as a souvenir. I'm not very familiar with paper, but the detailed instructions suggest it's higher quality than standard origami. It's unopened, so I don't know the exact number of sheets, but it looks like there are at least 20. There is some deterioration of the cellophane tape on the back, but otherwise, there are no stains or damage. If you're interested, or if you're knowledgeable about paper, please consider it.