For students, engineers, designers, managers, and anyone who wants to be more organized, creative, and productive. Comes with a standard pen and a cloth. A4 size: 20 labeled sheets that can be easily wiped clean. Each page can be reused up to 500 times. The free app "Cam Scanner" allows you to digitize pages as PDFs, assign file names to notes, manage them in folders, edit as needed, and quickly find them.