Advantus Cropper Hopper Expandable Paper Organizer, Frost, 12-Inch-by-12-Inch Accordion style organizer for 12 x 12-inch paper Made of clear, acid free polypropylene, and is designed to hold papers without bending corners Case is divided into 13 sections and includes blank labels Will hold up to 200 sheets of 12 by 12-inch standard weight paper