Firm & Durable Journal <br> Under normal use and storage conditions, the service life of acid-free paper can reach about 200 years. With the high-quality PU leather cover and the firm stitching, this diary is more durable.<br><br> Virgin Wood Pulp Paper<br> The diary is odorless, and there is a pure fragrance from wood. The paper is made of virgin wood pulp, which is healthy and natural. It's very good for recycling. This diary is a practical and environmentally friendly choice.<br><br> Portable A5 Size<br> A5 size is half the size of A6, it's suitable for school bags and backpacks, very easy to carry. Whether it is writing diary at home or making notes at the classroom, this diary could be very convenient. <br><br> Product name: A5 Astronaut Lock Diary<br> Inner page material: 100g off-white eye protection writing paper (acid-free paper)<br> Cover material: PU leather<br> Number of inner pages: 112 sheets(224 pages)<br> Cover specifications: 145*213mm<br> Inner page specification: 142*210mm<br> Product weight: 0.487kg<br>