These dividers are designed for standard 2/3/4/11 ring binders and can be easily loaded into ring binders (binders are not included).Binder Dividers with Tabs are made of sturdy, tear-resistant plastic, which can be reused in various projects, with excellent protection and durability, and long life.Tab Dividers separates the information in reports, manuals, presentations, research, etc., but also plays a good role in protecting files.Monthly Notebook Dividers includes a customizable table of contents and 12 monthly tabs in different colors. You can color code, number or mark each theme.Our tab dividers are very suitable for home, school or workplace, whether it is a professional or a student, they can help you classify and organize various jobs or arrangements.