Organized Up Stackit Organizer is great for organizing presentations and projects, especially when you're on-the-go. Three durable pockets of this poly organizer hold up to 50 sheets each and allow efficient subdivision of files. Dividers are tabbed for labels and quick reference. The tuck flap secures your letter-size documents in place along with the closed sides. The vertical orientation makes it easy to access documents and is backpack-friendly. Organizer is made from archival, acid-free material.