Lined pages with perforated edges, so easy to remove. In addition, the paper is thicker to prevent bleeding, so you can write, highlight and erase as you wish ^ Durable spiral design: The notebook is bound by metal wire, providing extra durability when you travel from point A to point B.^ Waterproof cover-a professional and durable cover notebook diary, which can protect your diary for many years, and it can be laid flat and comfortable for writing and reading.^ The hard case is thicker and stronger than similar notebooks on the market. 80g lined with white paper, thick paper prevents ink from penetrating the pages, and the durable binding of each spiral notebook keeps these pages together.^ The lined notebook is ideal for meeting notebooks, travel diaries or writer's notebooks, allowing you to add a little energy to workdays, study sessions or contemplation