A4 size sketchbook using 242g/m² Rough watercolor paper. - Brand: maruman - Type: Watercolor paper - Weight: 242g/m² - Surface: Rough - Number of pages: Unused - Size: A4 18 sheets Thank you for looking. There was a little blue paint on the back of the 14th page and the front of the 15th page (see photos). Otherwise, it is not dirty. This is a book that has been stored on a bookshelf for a long time. It is deteriorated, with yellowing and some stained areas. Please look closely at the photos before purchasing. Please purchase after understanding this.