This notebook is best to solve mathematics problems, write notes and mainly use by teachers, kids and college students .Specifications: (1) Dimensions: 8.5 x 11 inc. (2) Suitability for all styles of drawing including pencil, charcoal, and ink. (3) Matte paperback cover. (4) 100 pages or 50 sheets. (5) Acid Free Paper. (6) Binding: Perfect (7) Made with love in the USA (8) Make sure to check out the other designs and colors plus different size available...