Upgraded Spine for Larger Capacity: This accordion folder with the expandable spine design is more stretchy to fit over 250 sheets without bulking up too much. Unlike regular spines that can easily get dented, our spine is made for quality and not easy to deform in transit. Keep Organized Easily: This expanding file folder makes sorting and organizing your papers a breeze. 5 pockets with tabs allow you to sort by subject or task, and colorful labels help you search and locate quickly.