Combining two of the most useful storage and organizational products for school and office projects makes the DUO Organizer the perfect binding and expanding file system. Features a 1 inch 3 ring binder with round rings that hold up to 225 sheets. Also includes a 7 pocket expanding file organizer with blank index tabs for easy customization to keep items organized. Durable, water resistant, and polypropylene for long lasting usage. Dual elastic bands provide secure closure and offer access to each tool individually. Perfect home or office organizer with many uses including - Organize homework and class assignments, coupon organizer binder and shopping lists, home organizer for medical files or repair records, tax organizer or ongoing financial documents, and Wedding planner binder, and more. For 8.5" x 11" sheets.