GRAPH PAPER NOTEBOOK: RETTACY Grid Notebook comes in A4 (8.5'' × 11'') size, 96 Pages, durable and smooth Leather Softcover, 100 GSM Thick Acid-free Paper, Elastic Closure Band, Pen Holder, 2 Ribbon Bookmarks, Inner Pocket, Sticky Index Tabs LEATHER SOFTCOVER: RETTACY Grid Notebook's cover is made of smooth leather softcover, offering a protection for your precious entries. With this exquisite cover, you can rest assured that your grid notebook will be a cherished keepsake for years to come HIGH-QUALITY PAPER: Crafted with 100 GSM time-resistant paper, RETTACY Grid Notebook resists ghosting and bleed-through for clean, crisp pages. Acid-free material ensures long-term preservation, while its smooth surface enhances writing clarity - durability meets performance ACID-FREE PAPER: Acid-free paper prevents long-term corrosion, ensuring document preservation. It also offers high quality and excellent writing performance with a clear, uniform surface that enhances readability VERSATILE APPLICATIONS: The gridded layout of graph paper aids students in math, physics, engineering, and science by offering a precise framework for plotting, solving equations, and illustrating concepts, thus enhancing data visualization and comprehension of complex theories RETTACY Graph Grid Paper Notebook, 96 Pages, A4 Large Size (8.5'' x 11''), 5 Squares per Inch, Leather Softcover, 100 GSM Thick Paper, for School, Students, Math, Engineering (Black)