Hyunpoong Index Clear File is an office organization tool that can neatly store up to 20 sheets of B4 documents. The transparent inner sheets make it easy to check document contents at a glance, and the side index label allows for easy classification and identification. It is useful for systematically organizing materials in schools, academies, or companies, or for creating distributed document sets for events. Finished with a blue cover to maintain a clean appearance, use it to create an efficient document management environment through bulk purchases.