The notebook is made of soft PU material, with a touch as soft as a baby's skin. There is a multifunctional and practical pocket inside where you can store business cards and bank cards. A pen slot is set on the side. It features a metal loose-leaf binder, which is not prone to rusting and is convenient to disassemble. The thickened paper allows for double-sided writing, is gentle on the eyes, and prevents ink from bleeding through.