The durable plastic material protects the photo organizer from damage and moisture. The photo boxes are large enough to hold up to 1,000 photos each. The snap closure makes it easy for everyone to open and close the inner box. The photo boxes are used for organizing and storing photos and are also great for crafts and office supplies. They're a must-have for keeping all those scattered photos or small items organized. To use, pull the handle and place your items inside, then snap the handle back into the slot to secure the photo storage container in place. Note: You can label events on the photo organizers for even more organization. This is a great storage solution.