A waterproof and tear-proof polypropylene cover. Optik Paper®, a glossy, bright white 90g paper for ideal writing comfort. Compatible with the free SCRIBZEE® smartphone application to scan, save, and organize your notes. A range of covers in four different bright colors. Opening up 360°, its double spiral, also known as twin-wire binding, allows you to fold your notebook over when space is limited. Twin-wire binding is more robust than a single spiral. An elastic closure strap keeps the contents of the notebook safe. It includes 160 perforated, tear-out A4 sheets that are ready to file. Smart ruling with a header and margins helps organize your note-taking.