Package Includes: You will receive 2pcs index card holders each with 40 pages and 160 squares for a total of 320 squares in 2pcs. Also included are 100pcs of index cards in 2 colors. The index card holders fit 3x5 inch index cards Large Capacity: This set holds up to 320 cards. This means you can store a lot of information in one place. The large capacity ensures that you don't have to worry running out of space anytime soon allowing you to build a comprehensive organized library of cards Widely Applicable: This index card organizer is versatile and can be used in a variety of occasions it can be applied in office classroom school library and other occasions of daily study and work so that you can always check your notes and scheduling Keep Organized: The index card holder not only helps with sorting and organizing but also prevents loss and improves productivity. Use it to easily organize content and record key points. The holder is lightweight and easy to carry so it can easily fit in your backpack or hold in your hand Easy to Use: The index card holder is designed to be easy to use with large opening mechanisms that allow you to quickly insert or remove cards without any hassle. The clear plastic front panel allows you to see what's inside at a glance saving you time searching for a specific card