High quality books for subjects in the middle and upper classes. The binding is made of heavy, 290 gsm card. The writing paper is 90 gsm and when using normal ink, it can be written on both sides. Pack of 10 books. Lined - 33 lines each page. Packing unit: 10 books, 40 pages, A4 portrait format (8.27x11.69 inch), blank.